Q.

A wire bent in the form a right angled triangle PQR, carries a current 1A. It is placed in a region of a uniform magnetic field B=0.2T. If PR=1m, the net force on the wire is

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a

2.732 N

b

 3.46 N

c

Zero

d

1.73 N

answer is D.

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Detailed Solution

The net force on current carrying loop in uniform magnetic field will be zero.

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A wire bent in the form a right angled triangle PQR, carries a current 1A. It is placed in a region of a uniform magnetic field B=0.2T. If PR=1m, the net force on the wire is