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Figure shows cross section of two large ...

Figure shows cross section of two large parallel metal sheets carrying electric currents along their surface. The current in each sheet is `10//pi A//m` along the width, Consider two points A and B, as shown in the figure with their positions.

A

Megnetic field at A is `4mu T` along x-direction.

B

Magnetic field at A is `4 mu T` along negative x-direction.

C

Magentic field at B is zero.

D

Magnetic field at B is `2 mu T` along x-direction.

Text Solution

Verified by Experts

The correct Answer is:
A, C
Field due to each plate `=1/2 (mu_0)K=2(mu)K=2(mu)T`
At A, field add up, being in the same direction whereas at B, fields cancle out due to opposite directions.
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Knowledge Check

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