MHT CET 2025 Physics question
Two coils P and Q are kept near each other. When no current flows through coil P and current increases in coil Q at the rate of , the e.m.f. in coil P is 15 mV. When coil Q carries no current and current of 1.8 A flows through coil P, the magnetic flux linked with coil Q is
Answer: (B)
Solution
The e.m.f. induced in P due to changing current in Q is , so H mH. The mutual inductance is the same in both directions (). The flux linked with Q when
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