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The main reason for preferring usage of AC voltage over DC voltage
  • a)
    AC voltages can be easily and efficiently converted from one voltage to the other by means of transformers
  • b)
    DC uses alternators whereas AC uses generators
  • c)
    DC Batteries are of low voltage
  • d)
    There are no DC generators
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The main reason for preferring usage of AC voltage over DC voltagea)AC...
Reasons for preferring the usage of AC voltage over DC voltage:

Efficient Conversion:
AC voltages can be easily and efficiently converted from one voltage to another by means of transformers. Transformers are devices that can change the voltage level of an AC signal without significant losses. This makes it possible to transmit electricity over long distances at high voltages and then step it down to lower voltages for use in homes and businesses. In contrast, converting DC voltage requires the use of DC-DC converters, which are generally less efficient and more complex than transformers.

Flexibility:
AC voltage is more flexible than DC voltage because it can be easily generated and distributed using alternators and transformers. Alternators are devices that convert mechanical energy into AC electrical energy, whereas generators are devices that convert mechanical energy into DC electrical energy. AC generators are more common and widely available than DC generators, making AC voltage the preferred choice for power generation and distribution.

Higher Voltage Levels:
DC batteries typically operate at lower voltage levels compared to AC systems. While DC batteries may be suitable for low-power applications, they are not practical for high-power applications. AC voltage, on the other hand, can be easily stepped up or stepped down using transformers to match the desired voltage requirements.

No DC Generators:
DC generators are less common and less efficient compared to AC generators. AC generators can be easily synchronized and connected in parallel to meet the demands of a large electrical grid. In contrast, DC generators are more complex and require additional equipment to synchronize and distribute power effectively. As a result, AC voltage is the preferred choice for large-scale power generation and distribution.

In conclusion, the main reason for preferring the usage of AC voltage over DC voltage is the ease and efficiency of converting AC voltage using transformers. AC voltage is more flexible, can operate at higher voltage levels, and has a larger infrastructure of generators and distribution systems compared to DC voltage.
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The main reason for preferring usage of AC voltage over DC voltagea)AC...
By using the phenomenon of mutual induction, transformers allow us to easily change voltage of AC. This is necessary to cut down poer losses while supplying electricity to our homes
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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.Efficiency of toroidal transformer is around ______ % which is ______ than laminated core transformer.

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: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.Why sound system engineers prefer to use toroidal transformer?

The main reason for preferring usage of AC voltage over DC voltagea)AC voltages can be easily and efficiently converted from one voltage to the other by means of transformersb)DC uses alternators whereas AC uses generatorsc)DC Batteries are of low voltaged)There are no DC generatorsCorrect answer is option 'A'. Can you explain this answer?
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The main reason for preferring usage of AC voltage over DC voltagea)AC voltages can be easily and efficiently converted from one voltage to the other by means of transformersb)DC uses alternators whereas AC uses generatorsc)DC Batteries are of low voltaged)There are no DC generatorsCorrect 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 The main reason for preferring usage of AC voltage over DC voltagea)AC voltages can be easily and efficiently converted from one voltage to the other by means of transformersb)DC uses alternators whereas AC uses generatorsc)DC Batteries are of low voltaged)There are no DC generatorsCorrect 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 The main reason for preferring usage of AC voltage over DC voltagea)AC voltages can be easily and efficiently converted from one voltage to the other by means of transformersb)DC uses alternators whereas AC uses generatorsc)DC Batteries are of low voltaged)There are no DC generatorsCorrect answer is option 'A'. Can you explain this answer?.
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