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Question
The current is flowing in two coaxial coils in the same direction. On increasing distance between the coils, the electric current during the motion will :
The current is flowing in two coaxial coils in the same direction. On increasing distance between the coils, the electric current during the motion will :
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Solution
The correct option is A increase
We use the Lenz's law here. We know that the direction of any magnetic induction is such as to oppose the cause of the effect. Thus on increasing the distance we are actually decreasing the flux between the region of the coils which is opposed by increasing the current in each coil.
We use the Lenz's law here. We know that the direction of any magnetic induction is such as to oppose the cause of the effect. Thus on increasing the distance we are actually decreasing the flux between the region of the coils which is opposed by increasing the current in each coil.
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