A cube made of wire of equal length is connected to a battery as shown in figure.The magnetic field at the centre of the cube is

A cube made from wires of equal length is connected to a battery as shown in the figure. The magnetic field at the centre of the cube is

A current carrying wire AB of the length L is turned along a circle, as shown in figure. The magnetic field at the centre O.

A current carrying wire AB of the length L is turned along a circle, as shown in figure. The magnetic field at the centre O.

A current carrying wire AB of the length L is turned along a circle, as shown in figure. The magnetic field at the centre O.

A square loop of length L is made of wire of uniform cross-section carrying current l as shown in figure then magnetic field at centre of square is

A circular branching made from a uniform conductor is connected to a battery as shown in the figure. What force will the magnetic field of the currents in the branching exert on the agnetic pole placed at its centre O? Deduce the resutl qualtatively.