A wire of length L, mass m and carrying a current I is suspended from point O as shown, An another infinitely long wire carrying the same current I is at a distance L below the lower end of the wire. Given i=2A, L=1m and m=0.1kg (In 2=0.693)

What want to keep the suspended wire stationary by palcing a third inifinitely long wire carrying an upward current. Then this wire should be placed

Options

A. to the left of suspended wire
B. to the right of suspended wire
C. we can't keep suspended wire stationary by placing a third wire to the right or to the left of it
D. we can keep it either to the right or to the left. It will depend on the magnitude of the current in the third wire

Answer

a