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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > The diagram given below shows a solenoid carrying time varying current l=l0t. On the axis of the solenoid, a ring has been placed. The mutual inductance of the ring and the solenoid is M and the self inductance of the ring is L. If the resistance of the ring is R then maximum current which can flow through the ring is

The diagram given below shows a solenoid carrying time varying current l=l0t. On the axis of the solenoid, a ring has been placed. The mutual inductance of the ring and the solenoid is M and the self inductance of the ring is L. If the resistance of the ring is R then maximum current which can flow through the ring is

(assume that the internal resistance of the battery and of the connecting wire are negligible) In the circuit shown in fig The diagram given below shows a solenoid carrying time varying current l=l0t. On the axis of the solenoid the time constant of the two braches are equal(=T). Then if the key S is closed at the instant t=0 the time in which the current in the circuit through the battery will rise to its final value of (E/R) will be