Question

A current carrying wire LN is bent in the from shown below. If wire carries a current of 10 A and it is placed in a magnetic field a 5T which acts perpendicular to the paper outwards then it will experience a force 

(a) Zero 

(b) 5 N 

(c) 30 N 

(d) 20 N

Answer 1

Correct option (b) 5 N

Explanation: 

The given wire can be replaced by a straight wire as shown below 

Hence force experienced by the wire F = Bil = 5 x 10 x 0.1 = 5 N