Home
Class 12
PHYSICS
A very long straight solenoid has a cro...

A very long straight solenoid has a cross section radis `R` and `n` turns per unit lenghth. A direct current `I `flows throguh the solenoid. Suppose that `x` is the distance from the end of the the solenoid, measured along its axis. Find:
(a) the magnetic induction `B` on the axis as a funciton of `x`, draw an approximate plot of `B` vs ratio `x//R`,
(b) the distance `x_(0)` to the point on the axis at which the value of `B` differs by `eta = 1%` from that in the middle section of the solnoid.

Promotional Banner

Similar Questions

Explore conceptually related problems

A very long straight solenoid has a cross section radius R . A number of turns per unit length is equal to n . Find the magnetic induction at the centre of the coil when a current I flows thougth it.

A current of 1.6 A flows through a long solenoid, having 8 turns/cm. The magnetic induction at the end of the solenoid along its axis is

A long straight solenoid has n turns per unit length. An alternating current I = I_(m) sin omega t flows throught it. Find the displacement current density as a function of the distnace r from the solenoid equals R .

A very long straight solenoid carries a current i . The cross-sectional area of the solenoid is equal to S , the number of turns per unit length is equal to n . Find the flux of the vector B through the end plane of the solenoid.

A solenoid of radius R has n turns per unit length, then the self-inductance of the solenoid per unit length is

The magnetic field on the axis of a long solenoid having n turns per unit length and carrying a current is

A long solenoid with closely wound turns has n turns per unit of its length. A steady current I flows through this solenoid. Use Ampere's circuital law to obtain an expression, for the magnetic field, at a point on its axis and close to its mid point.

In a long staright solenoid with cross-sectional radius a and number of turns per unit length n a current varies with a constant velocity dotI A//s . Find the magntidue of the eddy current field strength as a function of the distance r from the solenoid axis. Draw the appoximate plot of this function.

A long solenoid has a radius a and number of turns per unit length is n . If it carries a current i, then the magnetic field on its axis is directly proportional to