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

A conducting loop carrying a current $I$ is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency to

A circular loop which is in the form of a major arc of a circle is kept in the horizontal plane and a constant magnetic field $B$ is applied in the vertical direction such that the magnetic lines of forces go into the plane. If $R$ is the radius of circle and it carries a current $I$ in the clockwise direction, then the force on the loop will be

Figure shows three long straight wires parallel and equally spaced with identical currents. Then the magnitude of net force acting on each wire due to the other is $F_{\mathrm{a}}, F_{\mathrm{b}} \text{and} F_{\mathrm{c}}$ for wires $a, b \text{and} c$ respectively: