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What is an infinite solenoid?

What is an infinite solenoid?

An infinite solenoid has infinite length but finite diameter. “Continuous” means that the solenoid is not formed by discrete finite-width coils but by many infinitely thin coils with no space between them; in this abstraction, the solenoid is often viewed as a cylindrical sheet of conductive material.

What happens to length of solenoid when current is passed?

A solenoid is a long coil of wire wrapped in many turns. When a current passes through it, it creates a nearly uniform magnetic field inside. As a result the solenoid acts as a temporary magnet. When the current stops passing it loses its magnetism.

How does length affect the magnetic field of a solenoid?

The magnetic field inside a solenoid is proportional to both the applied current and the number of turns per unit length. There is no dependence on the diameter of the solenoid, and the field strength doesn’t depend on the position inside the solenoid, i.e., the field inside is constant.

What flows through a solenoid?

Solenoids. Solenoids are powerful electromagnets made from an iron rod wrapped in coils of electric wire. When electricity flows through the wire, it turns the iron rod into a powerful magnet. When the electricity is switched off, the iron rod stops being magnetic.

What will be the magnetic field inside and outside the infinite long solenoid?

The total flux on the inside of the solenoid is always the same as the flux on the outside. This is an ideal problem, however as such is has no contradictions and the field outside is zero, the field inside is not zero and it is constant.

What is the magnetic field outside an infinite solenoid?

The electromotive force (emf) in a loop outside an infinite solenoid with changing current is usually calculated using the vector potential because the magnetic field outside an infinite solenoid is supposed to be zero. However, the magnetic field will only be zero for steady currents.

When an electric current passes through a solenoid the distance between?

When an electric current passes through a solenoid, the distance between any two adjacent rings of the solenoid .

When an electric current flows through a long solenoid magnetic field is set up?

When an electric current flow through a solenoid,magnetic field is set up around solenoid similar to that of a bar magnet. One end of a solenoid act as a north pole and other as south pole. Magnetic field is represented by straight magnetic field lines parallel and very close to each other.

What is solenoid length?

The length of a solenoid is 0.1m and its diameter is very small. A wire is wound over it in two layers. The number of turns in the inner layer is 50 and that on the outer layer is 40. The strength of current flowing in two layers in the same direction is 3 ampere.

Where is the field strongest in a long solenoid?

The magnetic field is strongest inside the coil of a solenoid.