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

Question:

Options :

(a) Zero on the first
(b)BIL/√2 on the second
(c)√3 BIL/2 on the third
(d) BIL on all of them

Answer :

(d) BIL on all of them

Answer Steps :

step 1:

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