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A conducting circular loop of radiius r ...

A conducting circular loop of radiius `r` carries a constant current `i`. It is placed in a uniform magnetic field `vec(B)_(0)` such that `vec(B)_(0)` is perpendicular to the plane of the loop . The magnetic force acting on the loop is

A

`ir B_(0)`

B

`2pi irB_(0)`

C

zero

D

`pi irB_(0)`

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE-MOVING CHARGES AND MAGNETISM-Assignment (Section A) Objective Type Questions (One option is correct)
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  17. A rectangular coil 20cmxx20cm has 100 turns and carries a current of 1...

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  18. A wire of length l is formed into a circular loop of one turn only and...

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  19. A wire of length l is bent in the form a circular coil of some turns. ...

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  20. The restoring couple in the moving coil galvanometer is due to

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