5. In Fig. 3 find the direction of the current (applying Lenz\'s law) induced an

Question

5. In Fig. 3 find the direction of the current (applying Lenz's law) induced and the direction of the force exerted on the rod by resulting induced magnetic field. [Ans: Induced current is counterclockwise] 6. Fig. 4 shows two concentric circular conducting coils. Let's assume counterclockwise current (viewed from the above) as positive and the clockwise one as negative. The graph below shows the variation of current in the outer loop as a function of time. Plot the variation of corresponding induced current in the inner loop. outer uter Fig. 3 Fig. 4

Explanation / Answer

5] The current will flow in a direction which opposes the increase of magnetic flux, i.e. magnetic field in loop has to be out of the page as the area is already increasing.

So it has to flow counterclockwise.

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