What is the magnetic field inside a current carrying wire?

The magnetic field inside a conductor with uniform current density J = I/πR2 can be found with Ampere’s Law. Inside the conductor the magnetic field B increases linearly with r. Outside the conductor the magnetic field becomes that of a straight conductor and decreases with radius.

Does a current carrying wire have an electric field?

Yes there is an electric field outside of a current carrying wire, in a direction along the wire axis (i.e. parallel to the wire).

Where does the magnetic field of a current carrying wire point?

The direction of the magnetic field is perpendicular to the wire and is in the direction the fingers of your right hand would curl if you wrapped them around the wire with your thumb in the direction of the current.

How is the magnetic field inside a current carrying solenoid?

Inside the solenoid the magnetic field lines will be straight lines and the field will be strong. Outside the solenoid the magnetic field will be weak and the field lines will curl up to form closed loops. Hence, the magnetic field inside a solenoid carrying current will be the same at all the points.

Does a current carrying wire produces both electric and magnetic field?

Yes, a current carrying conductor produces both an electric and magnetic field.

Why there is no electric field around a current carrying wire?

As we know that a current carrying conductor, such as a metal wire will produce a magnetic field around it, the motion of charge around the wire in the form of concentric circles. So, the conductor does not induce any electric field around itself.

How is magnetic field produced by current?

As Ampere suggested, a magnetic field is produced whenever an electrical charge is in motion. The spinning and orbiting of the nucleus of an atom produces a magnetic field as does electrical current flowing through a wire. The direction of the spin and orbit determine the direction of the magnetic field.

Is there a magnetic field inside a solenoid?

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. The energy density of the magnetic field depends on the strength of the field, squared, and also upon the magnetic permeability of the material it fills.

Is there magnetic field outside a solenoid?

The magnetic field lines follow the longitudinal path of the solenoid inside, so they must go in the opposite direction outside of the solenoid so that the lines can form a loop. In order for the total number of field lines to be conserved, the field outside must go to zero as the solenoid gets longer.

How a wire carrying a steady current generates a magnetic field?

As we know that a current carrying conductor, such as a metal wire will produce a magnetic field around it, the motion of charge around the wire in the form of concentric circles. So, the conductor does not induce any electric field around itself. However, a magnetic field is produced in the surroundings.

How steady current produces magnetic field?

The magnetic field produced by a steady current flowing in a very long straight wire encircles the wire. At a point P a radial distance r away from the wire it has magnitude B = μ0I/(2πr). The direction of B is given by the right-hand rule. Let your thumb point into the direction of the current flow.

Can magnetic fields exert a force on a wire carrying a current?

The magnetic force on a current-carrying wire. A magnetic field will exert a force on a single moving charge, so it follows that it will also exert a force on a current, which is a collection of moving charges.

What is the magnetic field in a current carrying a conductor?

Oersted had established that a compass needle gets deflected in the vicinity of a current carrying conductor i.e. this conductor exerts a force on the compass needle. Later on, in the year 1821, Michael Faraday discovered that a current carrying conductor also gets deflected when it is placed in a magnetic field.This can be said that magnetic field and this current carrying conductor exert a

What is the relationship between magnetic field and current?

The direction (clockwise or counter-clock wise) of this magnetic field is depends on the direction of the electric current. In the similar way, a changing magnetic field produces an electric current in a wire or conductor. The relationship between electricity and magnetism is called electromagnetism.

When a wire with a current is placed in a magnetic field,?

When a current carrying wire is placed in a magnetic field, it experiences a mechanical force. This was discovered by Michael Faraday in 1821. The wire will not experience any mechanical force if it is placed parallel to the magnetic field.