In the diagram shown, the wires `P_1Q_1` and `P_2Q_2` each of length `40cm` are made to slide on the rails with same speed of `5m//s`. In this region a magnetic field of `1T` exists. The electric current in `9kOmega` resistor is

Options

A. zero if both wires slide towards left.
B. 0.1 mA if both slide is opposite direction
C. 0.2 mA if both wires move towards left.
D. 0.2 mA if both wires move in opposite direction

Explanation

`i=2/(9+1)=0.2 A`
(B)
`i=0`