An infinitely long cylinder is kept parallel to an uniform magnetic field B directed along the positive z-axis. The direction of induced current as seen from the z-axis will be [2005]

Question

An infinitely long cylinder is kept parallel to an uniform magnetic field B directed along the positive z-axis. The direction of induced current as seen from the z-axis will be [2005]

Smart Achievers · Accepted Answer

(1)

As the cylinder is kept parallel to an uniform magnetic field, there is no change in magnetic flux and hence the induced current will be zero.

Solution

Q.
An infinitely long cylinder is kept parallel to an uniform magnetic field B directed along the positive z-axis. The direction of induced current as seen from the z-axis will be [2005]

1 zero

2 anticlockwise of the +ve z axis

3 clockwise of the +ve z axis

4 along the magnetic field

Ans.
(1)

As the cylinder is kept parallel to an uniform magnetic field, there is no change in magnetic flux and hence the induced current will be zero.

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