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Current flows through a straight cylindr...

Current flows through a straight cylindrical conductor of radius r. The current is distributed uniformly over its cross-section. The magnetic field at a distanace x from the axis of the conductor has magnitude B:

A

`B=0` at the axis

B

`Bpropx` for `0lexler`

C

`Bprop1//x` for `xgtr`

D

B is maximum for `x=r`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
Magnetic field induction at a point inside the cylindrical conductor is `Fpropx`
Magnetic field induction at a point outside the cylindrical conductor is `Fprop1//x`
Magnetic field induction at a point on the axis of cylindrical conductor is zero.
For `x=r`, B is maximum.
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Knowledge Check

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