state gov UP Police Assistant Operator (Radio Cadre) Mock Test Physics Moving Charges and Magnetism Force Between Two Parallel Currents
Length of two wires is 0.5 m and distance between the wires is 1 m. If 1 A current is passed in the wires in same direction, force per unit length between the wires is :
1
4 x 10-7
2
2 x 10-7
3
10-7
4
0