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Constant current of 1 a flows along thre...

Constant current of `1` a flows along three branches of wire frame as shown. The frame is a combination of two equilateral triangles `ACD` and `CDE` of side `1 m`. It is place in uniform magnetic field `B=4 T` acting perpendicular to the plane of paper. The magnitude of magnitude force acting on the frame is

A

`12 N`

B

`24 N`

C

`36 N`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
A
Since `vecF_(AD)=vecF_(CD)=vecF_(CED)`
Hence net force on frame `= 3vecF_(CD)`
`=3i(vecixxvecb)=3xx1xx1xx4`
`F=12 N`
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