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A circular loop of mass m and radius r i...

A circular loop of mass m and radius r in X-Y plane of a horizontal table as shown in figure. A uniform magnetic field B is applied parallel to X-axis. The current I in the loop, so that its one edge just lifts from the table is

A

`mg// pi r^(2) B`

B

`mg//pi B`

C

`mg//2 pi r B`

D

`pi rB//mg`

Text Solution

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The correct Answer is:
B
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FIITJEE-MAGNETIC-Assignment Problems (Objective) (LEVEL-I)
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