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Standard XII

Physics

Work Function

Two coils C...

Question

Two coils $C_{1} a n d C_{2}$ are arranged coaxially as shown in figure The ends of the coil $C_{2}$ are connected to an ammeter A The current sent through the coil $C_{1}$ is directly proportional to the time If the magnitude field induction produced by the coil $C_{1}$ is proportional to the current in it then the induced current through the coil $C_{2}$ is

zero

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increasing with time

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constant

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decreasing with time

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Solution

The correct option is C constant
The current at C1 can be given by: I=iT, where i = constant.
The magnetic field is given by, B = AI = AiT, A = constant
Current induced on C1 by C2 = I = E/R = NAi/R, R = constant
Therefore, the current will be constant

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The correct option is C constantThe current at C1 can be given by: I=iT, where i = constant.The magnetic field is given by, B = AI = AiT, A = constantCurrent induced on C1 by C2 = I = E/R = NAi/R, R = constantTherefore, the current will be constant

The correct option is C constant
The current at C1 can be given by: I=iT, where i = constant.
The magnetic field is given by, B = AI = AiT, A = constant
Current induced on C1 by C2 = I = E/R = NAi/R, R = constant
Therefore, the current will be constant