Two concentric co - planar circular loops of radius R and `r (lt lt R)` are placed as shown in the figure. The mutual inductance of the system will be

O is the centre of two coplanar concentric circular conductors, A and B, of radii r and R respectively as shown in the figure. Here, r lt lt lt R . The mutual inductance of the system of the conductors can be given by

Two concentric circular coils of radius r and R are placed coaxially with centres coinciding If R gt gt r then calculate the mutual inductance the coils.

Two concentric circular coils of radius r and R are placed coaxially with centres coinciding If R gt gt r then calculate the mutual inductance the coils.

Two concentric circular loops of radii 1 cm and 20 cm are placed coaxially. Find mutual inductance of the arrangement.

There are two concentric conducting shells of radius R, 2R respectively. Charge on each surface is as shown in the figure. Equivalent capacitance of this system is:

There are two concentric conducting shells of radius R, 2R respectively. Charge on each surface is as shown in the figure. Equivalent capacitance of this system is:

Two concetric coplanar circular conducing loops have radii R and r (R gt gt r) . Their mutual inductance is proportional to

A circular metallic disc of radius R has a small circular cavity of radius r as shown in figure. On heating the system

A circular metallic disc of radius R has a small circular cavity of radius r as shown in figure. On heating the system