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A square loop which is free to rotate ab...

A square loop which is free to rotate about the axis OO' is suspended in space in which a vertical magnetic field B is present as shown in the figure. The mass and length of each side of the wire are m and l, respectively. A cell of emf `epsilon` and an uncharged capacitor are connected in the wire frame. The angular velocity of the wire loop just after closing the key K is.

A

`(Bcepsilon)/(5m)`

B

`(2BCepsilon)/(5m)`

C

`(3BCepsilon)/(5m)`

D

`(4BCepsilon)/(5m)`

Text Solution

Verified by Experts

The correct Answer is:
C
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