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Uniform magnetic field B is directed ver...

Uniform magnetic field B is directed vertically upwards and 3 wires of equal length L , carrying equal current i are lying in a horizontal plane such that the first one is along north, second one along north–east and the third one at `60^(@)` north of east. Force exerted by magnetic field B on them is

A

Zero on the first

B

`("BiL")/(sqrt2)` on the second

C

`sqrt3 "" ("BiL")/(2)` on the third

D

BiL on all of them

Text Solution

Verified by Experts

The correct Answer is:
D
Since, B perpendicular to all current element
Hence F = I.l.B
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