The north pole of a magnet is moved into a coil through the end A. Simultaneously the north pole of another magnet is moved into the coil through the end B as shown in the figure. The direction of induced emf will:
A
Be in the anticlockwise direction as seen through the end A
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B
Be in the clockwise direction as seen through the end B
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C
Depend on the speed with which the two magnets are moved
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D
Depend on the speed with which the magnets are moved and the strengths of the magnets
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Solution
The correct option is D Depend on the speed with which the magnets are moved and the strengths of the magnets The direction of the resultant induced emf depends on the individual EMFs produced due to the movement of the two magnets. The individual emf's depend on the strength of the magnets and their speeds