There long straight wires `A`, `B` and `C` are carrying current as shown figure. Then the resultant force on `B` is directed

Three long straight wires A , B and C are carrying currents as shown in figure. Then the resultant force on B is directed

Three long straight wires A , B and C are carrying current as shown in figure. Then the resultant force on B is directed

P, Q and R long parallel straight wires in air, carrying currents as shown. The direction of resultant force on R is :-

Answer the following: (a) Define mutual inductance and write its S.I. unit. (b) A square loop of side a carrying a current I_(2) is kept at distance x from an infinitely long straight wire carrying a current I_(1) as shown in the figure. Obtain the expression for the resultant force on the loop.

P, Q and R are long straight wires in air, carrying currents as shown. The force on Q is directed

P, Q and R are long straight wires in air, carrying currents as shown. The force on Q is directed

A conducting circular loop of radius a is connected to two long, straight wires . The straight wires carry a current I as shown in figure . Find the magnetic field B at the centre of the loop.