The transformer equation is:
Correct answer: D. Option D
- A. Option A
- B. Option B
- C. Option C
- D. Option D
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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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More Electromagnetic Induction questions
The coils of a transformer
The coil from which the power is delivered to the circuit is called:
A transformer has:
In an ideal case, the rate of change of flux in the secondary coil of transformer IS:
When current I passaes through resistance R, the power loss due to heating effect is:
In order to minimize the power loss during transmission: