AP EAMCET · PHYSICS · Electromagnetic Induction
The self-inductance of two coils of a transformer is \(20 \mathrm{mH}\) and \(30 \mathrm{mH}\). What is the resistance between them?
- A 0
- B \(1.5 \Omega\)
- C \(600 \Omega\)
- D Infinite
Answer & Solution
Correct Answer
(D) Infinite
Step-by-step Solution
Detailed explanation
Transformers are built in such a way that both primary and secondary coils are well insulated from each other. Hence, resistance between them is considered to be infinite.
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