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Read the following text and answer the following questions on the basis of the same:
Losses of transformer
There are 4 types of losses in a transformer: Core loss, Ohmic loss, Stray load loss and dielectric loss.
(1) Core loss Core loss has two components - hysteresis loss and eddy current loss. These together are called no-load losses of a transformer and are calculated by open circuit test.
(a) Hysteresis loss: This loss mainly depends on the core material used in the transformer. To reduce this loss, the high-grade core material can be used. CRGO- Cold rolled grain oriented Si steel is commonly used for this purpose.
(b) Eddy current loss: This loss can be reduced by designing the core using slight laminations. These losses are present even when no load is connected. So, these are also known as no-load loss.
(2) Copper Loss Copper losses occur because of the Ohmic resistance in the windings of the transformer. If the currents in primary and secondary windings of the transformer are I1 and I2, and if the resistances of these windings are R1 & R2 then the copper losses that occurred in the windings are I12R1 & I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.
(3) Stray Loss These types of losses in a transformer occur because of the occurrence of the leakage flux. As compared with copper and iron losses, the percentage of stray losses are less, so these losses can be neglected.
(4) Dielectric Loss This loss mainly occurs within the oil of the transformer. Oil is an insulating material. Once the oil quality in the transformer deteriorates then the transformer’s efficiency is affected. Efficiency of a Transformer It is the ratio of output power and input power. Efficiency = Output Power / Input Power. The transformer is a highly efficient device which ranges between 95% – 98.5%.
Which of the following losses in transformer is also known as variable loss?
  • a)
    Copper loss
  • b)
    Stray loss
  • c)
    Dielectric loss
  • d)
    Core loss
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
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If the currents in primary and secondary windings of the transformer are I1 and I2 respectively and the resistances of these windings are R1 and R2 then the copper losses that occurred in the windings are I12R1 and I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.
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Read the following text and answer the following questions on the basis of the same:TOROIDA toroid is a coil of insulated or enamelled wire wound on a donut-shaped form made of powdered iron. A toroid is used as an inductor in electronic circuits, especially at low frequencies where comparatively large inductances are necessary. A toroid has more inductance , for a given number of turns, than a solenoid with a core of the same material and similar size. This makes it possible to construct high-inductance coils of reasonable physical size and mass. Toroidal coils of a given inductance can carry more current than solenoidal coils of similar size, because larger-diameter wires can be used, and the total amount of wire is less, reducing the resistance . In a toroid, all the magnetic flux is contained in the core material. This is because the core has no ends from which flux might leak off. The confinement of the flux prevents external magnetic fields from affecting the behaviour of the toroid, and also prevents the magnetic field in the toroid from affecting other components in a circuit. Standard toroidal transformers typically offer a 95% efficiency, while standard laminated transformers typically offer less than a 90% rating. One of the most important differences between a toroidal transformer and a traditional laminated transformer is the absence of gaps. The leakage flux through the gaps contributes to the stray losses in the form of eddy currents (which is also expelled in the form of heat). A toroidal core doesn’t have an air gap. The core is tightly wound . The result is a stable, predictable toroidal core, free from discontinuities and holes. Audible vibration or hum in transformers is caused by vibration of the windings and core layers from the forces between the coil turns and core laminations. The toroidal transformer’s construction helps quiet this noise. In audio, or signal transmitting applications, unwarranted noise will affect sound quality, so a transformer with low audible vibration is ideal. For this reason, many sound system engineers prefer to use a toroidal transformer instead of a traditional laminated transformer.Toroid is a

Read the following text and answer the following questions on the basis of the same:Losses of transformerThere are 4 types of losses in a transformer: Core loss, Ohmic loss, Stray load loss and dielectric loss.(1) Core loss Core loss has two components - hysteresis loss and eddy current loss. These together are called no-load losses of a transformer and are calculated by open circuit test.(a) Hysteresis loss: This loss mainly depends on the core material used in the transformer. To reduce this loss, the high-grade core material can be used. CRGO- Cold rolled grain oriented Si steel is commonly used for this purpose.(b) Eddy current loss: This loss can be reduced by designing the core using slight laminations. These losses are present even when no load is connected. So, these are also known as no-load loss.(2) Copper Loss Copper losses occur because of the Ohmic resistance in the windings of the transformer. If the currents in primary and secondary windings of the transformer are I1 and I2, and if the resistances of these windings are R1 & R2 then the copper losses that occurred in the windings are I12R1 & I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.(3) Stray Loss These types of losses in a transformer occur because of the occurrence of the leakage flux. As compared with copper and iron losses, the percentage of stray losses are less, so these losses can be neglected.(4) Dielectric Loss This loss mainly occurs within the oil of the transformer. Oil is an insulating material. Once the oil quality in the transformer deteriorates then the transformer’s efficiency is affected. Efficiency of a Transformer It is the ratio of output power and input power. Efficiency = Output Power / Input Power. The transformer is a highly efficient device which ranges between 95% – 98.5%.Which of the following losses in transformer is also known as variable loss?a)Copper lossb)Stray lossc)Dielectric lossd)Core lossCorrect answer is option 'A'. Can you explain this answer?
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Read the following text and answer the following questions on the basis of the same:Losses of transformerThere are 4 types of losses in a transformer: Core loss, Ohmic loss, Stray load loss and dielectric loss.(1) Core loss Core loss has two components - hysteresis loss and eddy current loss. These together are called no-load losses of a transformer and are calculated by open circuit test.(a) Hysteresis loss: This loss mainly depends on the core material used in the transformer. To reduce this loss, the high-grade core material can be used. CRGO- Cold rolled grain oriented Si steel is commonly used for this purpose.(b) Eddy current loss: This loss can be reduced by designing the core using slight laminations. These losses are present even when no load is connected. So, these are also known as no-load loss.(2) Copper Loss Copper losses occur because of the Ohmic resistance in the windings of the transformer. If the currents in primary and secondary windings of the transformer are I1 and I2, and if the resistances of these windings are R1 & R2 then the copper losses that occurred in the windings are I12R1 & I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.(3) Stray Loss These types of losses in a transformer occur because of the occurrence of the leakage flux. As compared with copper and iron losses, the percentage of stray losses are less, so these losses can be neglected.(4) Dielectric Loss This loss mainly occurs within the oil of the transformer. Oil is an insulating material. Once the oil quality in the transformer deteriorates then the transformer’s efficiency is affected. Efficiency of a Transformer It is the ratio of output power and input power. Efficiency = Output Power / Input Power. The transformer is a highly efficient device which ranges between 95% – 98.5%.Which of the following losses in transformer is also known as variable loss?a)Copper lossb)Stray lossc)Dielectric lossd)Core lossCorrect answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Read the following text and answer the following questions on the basis of the same:Losses of transformerThere are 4 types of losses in a transformer: Core loss, Ohmic loss, Stray load loss and dielectric loss.(1) Core loss Core loss has two components - hysteresis loss and eddy current loss. These together are called no-load losses of a transformer and are calculated by open circuit test.(a) Hysteresis loss: This loss mainly depends on the core material used in the transformer. To reduce this loss, the high-grade core material can be used. CRGO- Cold rolled grain oriented Si steel is commonly used for this purpose.(b) Eddy current loss: This loss can be reduced by designing the core using slight laminations. These losses are present even when no load is connected. So, these are also known as no-load loss.(2) Copper Loss Copper losses occur because of the Ohmic resistance in the windings of the transformer. If the currents in primary and secondary windings of the transformer are I1 and I2, and if the resistances of these windings are R1 & R2 then the copper losses that occurred in the windings are I12R1 & I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.(3) Stray Loss These types of losses in a transformer occur because of the occurrence of the leakage flux. As compared with copper and iron losses, the percentage of stray losses are less, so these losses can be neglected.(4) Dielectric Loss This loss mainly occurs within the oil of the transformer. Oil is an insulating material. Once the oil quality in the transformer deteriorates then the transformer’s efficiency is affected. Efficiency of a Transformer It is the ratio of output power and input power. Efficiency = Output Power / Input Power. The transformer is a highly efficient device which ranges between 95% – 98.5%.Which of the following losses in transformer is also known as variable loss?a)Copper lossb)Stray lossc)Dielectric lossd)Core lossCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the following text and answer the following questions on the basis of the same:Losses of transformerThere are 4 types of losses in a transformer: Core loss, Ohmic loss, Stray load loss and dielectric loss.(1) Core loss Core loss has two components - hysteresis loss and eddy current loss. These together are called no-load losses of a transformer and are calculated by open circuit test.(a) Hysteresis loss: This loss mainly depends on the core material used in the transformer. To reduce this loss, the high-grade core material can be used. CRGO- Cold rolled grain oriented Si steel is commonly used for this purpose.(b) Eddy current loss: This loss can be reduced by designing the core using slight laminations. These losses are present even when no load is connected. So, these are also known as no-load loss.(2) Copper Loss Copper losses occur because of the Ohmic resistance in the windings of the transformer. If the currents in primary and secondary windings of the transformer are I1 and I2, and if the resistances of these windings are R1 & R2 then the copper losses that occurred in the windings are I12R1 & I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.(3) Stray Loss These types of losses in a transformer occur because of the occurrence of the leakage flux. As compared with copper and iron losses, the percentage of stray losses are less, so these losses can be neglected.(4) Dielectric Loss This loss mainly occurs within the oil of the transformer. Oil is an insulating material. Once the oil quality in the transformer deteriorates then the transformer’s efficiency is affected. Efficiency of a Transformer It is the ratio of output power and input power. Efficiency = Output Power / Input Power. The transformer is a highly efficient device which ranges between 95% – 98.5%.Which of the following losses in transformer is also known as variable loss?a)Copper lossb)Stray lossc)Dielectric lossd)Core lossCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Read the following text and answer the following questions on the basis of the same:Losses of transformerThere are 4 types of losses in a transformer: Core loss, Ohmic loss, Stray load loss and dielectric loss.(1) Core loss Core loss has two components - hysteresis loss and eddy current loss. These together are called no-load losses of a transformer and are calculated by open circuit test.(a) Hysteresis loss: This loss mainly depends on the core material used in the transformer. To reduce this loss, the high-grade core material can be used. CRGO- Cold rolled grain oriented Si steel is commonly used for this purpose.(b) Eddy current loss: This loss can be reduced by designing the core using slight laminations. These losses are present even when no load is connected. So, these are also known as no-load loss.(2) Copper Loss Copper losses occur because of the Ohmic resistance in the windings of the transformer. If the currents in primary and secondary windings of the transformer are I1 and I2, and if the resistances of these windings are R1 & R2 then the copper losses that occurred in the windings are I12R1 & I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.(3) Stray Loss These types of losses in a transformer occur because of the occurrence of the leakage flux. As compared with copper and iron losses, the percentage of stray losses are less, so these losses can be neglected.(4) Dielectric Loss This loss mainly occurs within the oil of the transformer. Oil is an insulating material. Once the oil quality in the transformer deteriorates then the transformer’s efficiency is affected. Efficiency of a Transformer It is the ratio of output power and input power. Efficiency = Output Power / Input Power. The transformer is a highly efficient device which ranges between 95% – 98.5%.Which of the following losses in transformer is also known as variable loss?a)Copper lossb)Stray lossc)Dielectric lossd)Core lossCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of Read the following text and answer the following questions on the basis of the same:Losses of transformerThere are 4 types of losses in a transformer: Core loss, Ohmic loss, Stray load loss and dielectric loss.(1) Core loss Core loss has two components - hysteresis loss and eddy current loss. These together are called no-load losses of a transformer and are calculated by open circuit test.(a) Hysteresis loss: This loss mainly depends on the core material used in the transformer. To reduce this loss, the high-grade core material can be used. CRGO- Cold rolled grain oriented Si steel is commonly used for this purpose.(b) Eddy current loss: This loss can be reduced by designing the core using slight laminations. These losses are present even when no load is connected. So, these are also known as no-load loss.(2) Copper Loss Copper losses occur because of the Ohmic resistance in the windings of the transformer. If the currents in primary and secondary windings of the transformer are I1 and I2, and if the resistances of these windings are R1 & R2 then the copper losses that occurred in the windings are I12R1 & I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.(3) Stray Loss These types of losses in a transformer occur because of the occurrence of the leakage flux. As compared with copper and iron losses, the percentage of stray losses are less, so these losses can be neglected.(4) Dielectric Loss This loss mainly occurs within the oil of the transformer. Oil is an insulating material. Once the oil quality in the transformer deteriorates then the transformer’s efficiency is affected. Efficiency of a Transformer It is the ratio of output power and input power. Efficiency = Output Power / Input Power. The transformer is a highly efficient device which ranges between 95% – 98.5%.Which of the following losses in transformer is also known as variable loss?a)Copper lossb)Stray lossc)Dielectric lossd)Core lossCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Read the following text and answer the following questions on the basis of the same:Losses of transformerThere are 4 types of losses in a transformer: Core loss, Ohmic loss, Stray load loss and dielectric loss.(1) Core loss Core loss has two components - hysteresis loss and eddy current loss. These together are called no-load losses of a transformer and are calculated by open circuit test.(a) Hysteresis loss: This loss mainly depends on the core material used in the transformer. To reduce this loss, the high-grade core material can be used. CRGO- Cold rolled grain oriented Si steel is commonly used for this purpose.(b) Eddy current loss: This loss can be reduced by designing the core using slight laminations. These losses are present even when no load is connected. So, these are also known as no-load loss.(2) Copper Loss Copper losses occur because of the Ohmic resistance in the windings of the transformer. If the currents in primary and secondary windings of the transformer are I1 and I2, and if the resistances of these windings are R1 & R2 then the copper losses that occurred in the windings are I12R1 & I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.(3) Stray Loss These types of losses in a transformer occur because of the occurrence of the leakage flux. As compared with copper and iron losses, the percentage of stray losses are less, so these losses can be neglected.(4) Dielectric Loss This loss mainly occurs within the oil of the transformer. Oil is an insulating material. Once the oil quality in the transformer deteriorates then the transformer’s efficiency is affected. Efficiency of a Transformer It is the ratio of output power and input power. Efficiency = Output Power / Input Power. The transformer is a highly efficient device which ranges between 95% – 98.5%.Which of the following losses in transformer is also known as variable loss?a)Copper lossb)Stray lossc)Dielectric lossd)Core lossCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Read the following text and answer the following questions on the basis of the same:Losses of transformerThere are 4 types of losses in a transformer: Core loss, Ohmic loss, Stray load loss and dielectric loss.(1) Core loss Core loss has two components - hysteresis loss and eddy current loss. These together are called no-load losses of a transformer and are calculated by open circuit test.(a) Hysteresis loss: This loss mainly depends on the core material used in the transformer. To reduce this loss, the high-grade core material can be used. CRGO- Cold rolled grain oriented Si steel is commonly used for this purpose.(b) Eddy current loss: This loss can be reduced by designing the core using slight laminations. These losses are present even when no load is connected. So, these are also known as no-load loss.(2) Copper Loss Copper losses occur because of the Ohmic resistance in the windings of the transformer. If the currents in primary and secondary windings of the transformer are I1 and I2, and if the resistances of these windings are R1 & R2 then the copper losses that occurred in the windings are I12R1 & I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.(3) Stray Loss These types of losses in a transformer occur because of the occurrence of the leakage flux. As compared with copper and iron losses, the percentage of stray losses are less, so these losses can be neglected.(4) Dielectric Loss This loss mainly occurs within the oil of the transformer. Oil is an insulating material. Once the oil quality in the transformer deteriorates then the transformer’s efficiency is affected. Efficiency of a Transformer It is the ratio of output power and input power. Efficiency = Output Power / Input Power. The transformer is a highly efficient device which ranges between 95% – 98.5%.Which of the following losses in transformer is also known as variable loss?a)Copper lossb)Stray lossc)Dielectric lossd)Core lossCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Read the following text and answer the following questions on the basis of the same:Losses of transformerThere are 4 types of losses in a transformer: Core loss, Ohmic loss, Stray load loss and dielectric loss.(1) Core loss Core loss has two components - hysteresis loss and eddy current loss. These together are called no-load losses of a transformer and are calculated by open circuit test.(a) Hysteresis loss: This loss mainly depends on the core material used in the transformer. To reduce this loss, the high-grade core material can be used. CRGO- Cold rolled grain oriented Si steel is commonly used for this purpose.(b) Eddy current loss: This loss can be reduced by designing the core using slight laminations. These losses are present even when no load is connected. So, these are also known as no-load loss.(2) Copper Loss Copper losses occur because of the Ohmic resistance in the windings of the transformer. If the currents in primary and secondary windings of the transformer are I1 and I2, and if the resistances of these windings are R1 & R2 then the copper losses that occurred in the windings are I12R1 & I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.(3) Stray Loss These types of losses in a transformer occur because of the occurrence of the leakage flux. As compared with copper and iron losses, the percentage of stray losses are less, so these losses can be neglected.(4) Dielectric Loss This loss mainly occurs within the oil of the transformer. Oil is an insulating material. Once the oil quality in the transformer deteriorates then the transformer’s efficiency is affected. Efficiency of a Transformer It is the ratio of output power and input power. Efficiency = Output Power / Input Power. The transformer is a highly efficient device which ranges between 95% – 98.5%.Which of the following losses in transformer is also known as variable loss?a)Copper lossb)Stray lossc)Dielectric lossd)Core lossCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Read the following text and answer the following questions on the basis of the same:Losses of transformerThere are 4 types of losses in a transformer: Core loss, Ohmic loss, Stray load loss and dielectric loss.(1) Core loss Core loss has two components - hysteresis loss and eddy current loss. These together are called no-load losses of a transformer and are calculated by open circuit test.(a) Hysteresis loss: This loss mainly depends on the core material used in the transformer. To reduce this loss, the high-grade core material can be used. CRGO- Cold rolled grain oriented Si steel is commonly used for this purpose.(b) Eddy current loss: This loss can be reduced by designing the core using slight laminations. These losses are present even when no load is connected. So, these are also known as no-load loss.(2) Copper Loss Copper losses occur because of the Ohmic resistance in the windings of the transformer. If the currents in primary and secondary windings of the transformer are I1 and I2, and if the resistances of these windings are R1 & R2 then the copper losses that occurred in the windings are I12R1 & I22R2 respectively. So, the entire copper loss will be I12R1 + I22R2. This loss is also called variable or ohmic losses because this loss changes based on the load.(3) Stray Loss These types of losses in a transformer occur because of the occurrence of the leakage flux. As compared with copper and iron losses, the percentage of stray losses are less, so these losses can be neglected.(4) Dielectric Loss This loss mainly occurs within the oil of the transformer. Oil is an insulating material. Once the oil quality in the transformer deteriorates then the transformer’s efficiency is affected. Efficiency of a Transformer It is the ratio of output power and input power. Efficiency = Output Power / Input Power. The transformer is a highly efficient device which ranges between 95% – 98.5%.Which of the following losses in transformer is also known as variable loss?a)Copper lossb)Stray lossc)Dielectric lossd)Core lossCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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