CUET · PHYSICS · PYQ PAPER 2023
Two coils of self inductances \( L_1 \) and \( L_2 \) are kept close to each other so that the effective flux in one is completely linked with the other. What is the mutual inductance M between them ?
- A \( L_1 L_2 \)
- B \( L_1 L_2^{-1} \)
- C \( (L_1 L_2)^2 \)
- D \( (L_1 L_2)^{1/2} \)
Answer & Solution
Correct Answer
(D) \( (L_1 L_2)^{1/2} \)
Step-by-step Solution
Detailed explanation
\( k = 1 \) \( M = k \sqrt{L_1 L_2} \) \( M = (L_1 L_2)^{1/2} \)
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