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A current i ampere flows along the inner...

A current `i` ampere flows along the inner conductor of a coaxial cable and returns along the outer conductor fo the cable, then the magnetic induction at any point outside the conductor at a distance `r` metre from the axis is

A

`oo`

B

Zero

C

`(mu_(0))/(4pi)(2i)/r`

D

`(mu_(0))/(4pi)(2pi i)/r`

Text Solution

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The correct Answer is:
B
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ERRORLESS -MAGNETIC EFFECT OF CURRENT-Exercise
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