[" A very long (length L) cylindrical galaxy is made of uniformly distributed mass and has radius "],[R(R<

A long cylindrical wire carries a steady current which is uniformly distributed across its cross section. Which of the following is true?

A long cylindrical shell of length l and radius a is given a uniformly distributed charge Q on its surface. If the shell is expanded uniformly to a radius b, find the work done by electrical forces in the process of expansion. [(lambda^(2)l)/(4pi in_(0))l n(b/a)]

A point charge q is situated at a distance r from one end of a thin conduction rod of length L having a charge Q (uniformly distributed a long its length).find the magnitudes of electric force between the two.

Calculate the force exerted by point mass m on rod of uniformly distributed mass M and length l (Placed as shown in figure) .

Calculate the force exerted by point mass m on rod of uniformly distributed mass M and length l (Placed as shown in figure) .

Axis of a solid cylinder of infinite length and radius R lies along y-axis. It carries a uniformly distributed current I along +y direction. Magnetic field at a point (R//2, y, R//2) is

Axis of a solid cylinder of infinite length and radius R lies along y-axis. It carries a uniformly distributed current I along +y direction. Magnetic field at a point (R//2, y, R//2) is

The figure shows the cross-section of a long cylindrical conductor of radius a carrying a uniformly distributed current i. The magnetic field due to current at P is :

The figure shows the cross-section of a long cylindrical conductor of radius a carrying a uniformly distributed current i. The magnetic field due to current at P is :

A long thick conducting cylinder of radius 'R' carries a current uniformly distributed over its cross section :