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In Fig. (a) and Fig. (b), two air-cored solenoids P and Q have been shown. They are placed near each other. In Fig. (a), when IP , the current in P, changes at the rate of 5 A/s, an emf of 2 mV is induced in Q. The current in P is then switched off, and a current changing at 2 A/s is fed through Q as shown in diagram. What emf will be induced in solenoid P? |
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Answer» In Fig. (a) and Fig. (b), two air-cored solenoids P and Q have been shown. |
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They are placed near each other. In Fig.