One henry is equal to:
Correct answer: A. I ohm x 1 sec
- A. I ohm x 1 sec
- B. 1 ohm x l hertz
- C. 1 ohm x 1 metre
- D. All of above
Explanation
One henry (H) is equal to 1 ohm x 1 second.The unit of inductance, the henry, is defined as the amount of inductance in a circuit in which an electromotive force of one volt is produced when the current is varied at the rate of one ampere per second. This relationship is expressed as:1 Henry=1 Volt1 Ampere/second=1 ohm×1 second1 Henry=1 Ampere/second1 Volt =1 ohm×1 secondSo, the correct option is: I ohm x 1 sec.
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About Electromagnetic Induction
Changing magnetic flux induces an emf according to Faraday's law, while Lenz's law gives the direction that opposes the change producing it. Transformers apply induction between coils to step alternating voltage up or down, with turns ratio, current transformation and energy losses determining practical operation.
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