Question

Three long, straight and parallel wires carrying currents are arranged as shown in figure. The force experienced by 10 cm length of wire Q is 

(a) 1.4×10^–4 N towards the right 

(b) 1.4×10^–4 N towards the left 

(c) 2.6 × 10^–4 N to the right 

(d) 2.6×10^–4 N to the left

Answer 1

Correct option (a) 1.4×10^–4 N towards the right

Explanation: 

N (towards right i.e. in the direction of vector F_R.