What is the mutual inducatance of a system of coaxical cables carrying current in opposite directions a sshows in Fig. 4.3. Their radii are `a` and `b`, respectively.

What is the mutual inductance of a system of co-axial cables carrying current in opposite directions as shown ? Their radii are a and b respectively and its length l .

What is the self inductance of a system of co-axial cables carrying current in opposite directions as shown ? Their radii are a and b respectively and its length l .

WHat is the direction of force between two parallel conductors carrying current in opposite direction?

What is the nature of force between two parallel wires carrying current in opposite directions?

What will be the type force between two parallel conductors carrying current in the opposite direction.

An otherwise infinite, straight wire has two concentric loops of radii a and b carrying equal currents in opposite directions as shown in Fig. The magnetic field at the common centre is zero for

An otherwise infinite, straight wire has two concentric loops of radii a and b carrying equal currents in opposite directions as shown in Fig. The magnetic field at the common centre is zero for

Find the magnetic dipole moment of the spiral of total number of turns N , carrying current i having inner and outer radii a and b respectively.