A coaxial cable carries the a current i in the inside conductor of radius a as shown in figure-4.80 and the outer conductor of inner radius b and outer radius c carries a current i' in opposite direction. Find the magnetic induction due to the coaxial cable at distance r from the central axis of the cable for (a) `r gt a`, (b) `a lt r lt b` and (c) `b gt r gt c`

In a coaxial, straight cable, the central conductor and the outer conductor carry equal currents in opposite directions. The magnetic field is zero.

A hollow cylindrical conductor of inner radius a and outer radius b carries a current I uniformly spread over its cross-section. Find the magnetic field induction at a point inside the body of the conductor at a distance r [where a lt r lt b ] from the axis of the cylinder.

Coaxial cable is an example of

In a coaxial, straght cable, the central conductor and the outer conductor carry equal currents in opposite directions.The magnetic field is non-zero.

A long thin hollow metallic cylinder of radius 'R' has a current i ampere. The magnetic induction 'B' -away from the axis at a distance r from the axis varies as shown in

Shown in the figure is a shell made of a conductor. It has inner radius a and outer radius b, and carries charge. Q at its centre is a dipole vecp shown in this case:

A long copper tube of inner radius R carriers a current i . The magnetic field B inside the tube is

Consider a coaxial cable which consists of an inner wire of radius a surrounded by an outer shell of inner and outer radii b and c respectively. The inner wire carries an electric current (i_0) and the outer shell carries an equal current in opposite direction. Find the magnetic field at a distance x from the axis where (a) xlta, (b) altxltb, (c) bltxltc and (d)xgtc. Assume that the current density is uniform in the inner wire and also uniform in the outer shell.

A thin but long, hollow, cylindrical tube of radius r carries a current i along its length. Find the magnitude of the magnetic field at a distance r/2 from the surface (a) inside the tube (b) outside the tube.