answersLogoWhite

0

The magnetic field due to a constant current through a circular loop is the same shape, outside the loop, as the field due to a bar magnet. At the centre of the loop the field can be found, using the Biot-Savart Law, to be

(Equation 1: URL in related links),

where ?0 is the permeability of free space, I is the current through the loop, R is the radius of the loop and z-hat is a unit vector perpendicular to the plane of the loop. The field on the axis of the loop can be found, again using the Biot-Savart Law, to be

(Equation 2: URL in related links),

where z is the distance from the centre of the loop along its axis and all other symbols have the same meaning as in the previous equation.

User Avatar

Wiki User

13y ago

What else can I help you with?

Related Questions

What shape is the magnetic field produced when current is passed through wire?

CIRCULAR


What is the Field due current flow through a conductor?

Circular magnetic field will create around the conductor.


What is produced around a wire when an electric current flows through a wire?

A magnetic field is produced around a wire when an electric current flows through it. This magnetic field is directed along circular lines around the wire.


If you suspend a circular loop of wire carrying current by a thread how will you expect it to align itself?

The circular loop of wire carrying current will align itself in a plane perpendicular to the direction of the magnetic field created by the current flowing through the loop. This is a result of the magnetic force exerted on the current-carrying loop in the presence of the magnetic field.


What is the direction of the magnetic field around a current-carrying wire?

The magnetic field around a current-carrying wire is circular and perpendicular to the direction of the current flow.


What is the shape of magnetic lines force in case of a straight current carrying conductor?

The shape of the magnetic field lines around a straight current-carrying conductor is circular, with the conductor at the center of each circular loop. These magnetic field lines form concentric circles around the conductor, perpendicular to the direction of the current flow.


In a solenoid, will there be a magnetic field if there is no current flowing through it?

Yes, a solenoid will still have a magnetic field even if there is no current flowing through it.


Does an electric current produce a magnet?

Yes, an electric current produces a magnetic field. When current flows through a conductor, it generates a circular magnetic field around the conductor according to the right-hand rule. This principle is the basis for electromagnets and many electrical devices.


What shape can be drawn though a solenoid to determine the magnitude of its magnetic field?

A circular loop or coil can be drawn through a solenoid to determine the magnitude of its magnetic field. By measuring the induced current in the loop or coil, the strength of the magnetic field can be inferred using Ampere's law.


Does a wire with no current have a magnetic field?

Yes, a wire with no current flowing through it does not produce a magnetic field. Current flow is required to generate a magnetic field around a wire.


The direction of a magnetic field produced by an electric current depends on the direction of the what?

The direction of a magnetic field produced by an electric current depends on the direction of the current flow. The magnetic field will form circular loops around the current-carrying wire, following the right-hand rule.


What shape is magnetic field produced when current is passed through the wire?

it is called the thumb rule right hand curled means flux line thumb means direction of current. there will be a reversal of flux.