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Which among the following is true about transformers?
- a)Transformers are used to convert low alternating voltage to a high alternating voltage
- b)Transformers are used to convert low alternating current to a high alternating current
- c)Transformers are based on the phenomena of mutual electric field
- d)Transformers are used only for low alternating voltage
Correct answer is option 'A'. Can you explain this answer?
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Which among the following is true about transformers?a)Transformers ar...
Introduction:
Transformers are electrical devices that are used to transfer electrical energy between two or more circuits through the phenomenon of electromagnetic induction. They can either increase (step-up) or decrease (step-down) the voltage levels of alternating current (AC) signals. In the given options, option 'A' is true, as transformers are commonly used to convert low alternating voltage to high alternating voltage.
Explanation:
- Transformers are used to convert low alternating voltage to high alternating voltage. This is achieved by the principle of electromagnetic induction, where a changing magnetic field induces a voltage in a nearby coil.
- Transformers consist of two or more coils of wire, known as windings, which are wound around a common magnetic core. The primary winding is connected to the input voltage source, while the secondary winding is connected to the load.
- When an alternating current flows through the primary winding, it creates a changing magnetic field around the core. This changing magnetic field induces a voltage in the secondary winding according to Faraday's law of electromagnetic induction.
- The ratio of the number of turns in the primary winding to the number of turns in the secondary winding determines the voltage transformation ratio. For a step-up transformer, the secondary voltage is higher than the primary voltage, while for a step-down transformer, the secondary voltage is lower than the primary voltage.
- Transformers are widely used in various applications, including power transmission and distribution systems, to step-up the voltage for long-distance transmission and step-down the voltage for safe usage in homes and industries.
- Option 'B' is incorrect because transformers do not convert current levels. The current in the secondary winding is determined by the load connected to it and the voltage transformation ratio.
- Option 'C' is incorrect because transformers are based on the phenomena of mutual electromagnetic induction, not mutual electric field. The changing magnetic field induces a voltage in the secondary winding, not an electric field.
- Option 'D' is incorrect because transformers can be used for both low and high alternating voltages, depending on the application and the desired voltage transformation ratio.
Conclusion:
Transformers are electrical devices that convert low alternating voltage to high alternating voltage through the principle of electromagnetic induction. They are widely used in various applications and play a crucial role in power transmission and distribution systems.
Transformers are electrical devices that are used to transfer electrical energy between two or more circuits through the phenomenon of electromagnetic induction. They can either increase (step-up) or decrease (step-down) the voltage levels of alternating current (AC) signals. In the given options, option 'A' is true, as transformers are commonly used to convert low alternating voltage to high alternating voltage.
Explanation:
- Transformers are used to convert low alternating voltage to high alternating voltage. This is achieved by the principle of electromagnetic induction, where a changing magnetic field induces a voltage in a nearby coil.
- Transformers consist of two or more coils of wire, known as windings, which are wound around a common magnetic core. The primary winding is connected to the input voltage source, while the secondary winding is connected to the load.
- When an alternating current flows through the primary winding, it creates a changing magnetic field around the core. This changing magnetic field induces a voltage in the secondary winding according to Faraday's law of electromagnetic induction.
- The ratio of the number of turns in the primary winding to the number of turns in the secondary winding determines the voltage transformation ratio. For a step-up transformer, the secondary voltage is higher than the primary voltage, while for a step-down transformer, the secondary voltage is lower than the primary voltage.
- Transformers are widely used in various applications, including power transmission and distribution systems, to step-up the voltage for long-distance transmission and step-down the voltage for safe usage in homes and industries.
- Option 'B' is incorrect because transformers do not convert current levels. The current in the secondary winding is determined by the load connected to it and the voltage transformation ratio.
- Option 'C' is incorrect because transformers are based on the phenomena of mutual electromagnetic induction, not mutual electric field. The changing magnetic field induces a voltage in the secondary winding, not an electric field.
- Option 'D' is incorrect because transformers can be used for both low and high alternating voltages, depending on the application and the desired voltage transformation ratio.
Conclusion:
Transformers are electrical devices that convert low alternating voltage to high alternating voltage through the principle of electromagnetic induction. They are widely used in various applications and play a crucial role in power transmission and distribution systems.
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Community Answer
Which among the following is true about transformers?a)Transformers ar...
Transformers are used to convert low alternating voltage to a high alternating voltage and vice versa. Transformers are based on the phenomena of mutual induction. A transformer consists of a soft iron coil with two coils wound around it which are not connected to one another. The other statements are not valid.
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Which among the following is true about transformers?a)Transformers are used to convert low alternating voltage to a high alternating voltageb)Transformers are used to convert low alternating current to a high alternating currentc)Transformers are based on the phenomena of mutual electric fieldd)Transformers are used only for low alternating voltageCorrect answer is option 'A'. Can you explain this answer?
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Which among the following is true about transformers?a)Transformers are used to convert low alternating voltage to a high alternating voltageb)Transformers are used to convert low alternating current to a high alternating currentc)Transformers are based on the phenomena of mutual electric fieldd)Transformers are used only for low alternating voltageCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which among the following is true about transformers?a)Transformers are used to convert low alternating voltage to a high alternating voltageb)Transformers are used to convert low alternating current to a high alternating currentc)Transformers are based on the phenomena of mutual electric fieldd)Transformers are used only for low alternating voltageCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which among the following is true about transformers?a)Transformers are used to convert low alternating voltage to a high alternating voltageb)Transformers are used to convert low alternating current to a high alternating currentc)Transformers are based on the phenomena of mutual electric fieldd)Transformers are used only for low alternating voltageCorrect answer is option 'A'. Can you explain this answer?.
Which among the following is true about transformers?a)Transformers are used to convert low alternating voltage to a high alternating voltageb)Transformers are used to convert low alternating current to a high alternating currentc)Transformers are based on the phenomena of mutual electric fieldd)Transformers are used only for low alternating voltageCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which among the following is true about transformers?a)Transformers are used to convert low alternating voltage to a high alternating voltageb)Transformers are used to convert low alternating current to a high alternating currentc)Transformers are based on the phenomena of mutual electric fieldd)Transformers are used only for low alternating voltageCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which among the following is true about transformers?a)Transformers are used to convert low alternating voltage to a high alternating voltageb)Transformers are used to convert low alternating current to a high alternating currentc)Transformers are based on the phenomena of mutual electric fieldd)Transformers are used only for low alternating voltageCorrect answer is option 'A'. Can you explain this answer?.
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