Q&A

Why current carrying wire does not produce electric field?

Why current carrying wire does not produce electric field?

Originally Answered: Why can’t a current-carrying wire produce its own electric field? Even during flow of current , the wire remains electrically neutral. Hence, it does not produce electric field.

Why is there a force on a current carrying wire?

Because charges ordinarily cannot escape a conductor, the magnetic force on charges moving in a conductor is transmitted to the conductor itself. The magnetic field exerts a force on a current-carrying wire in a direction given by the right hand rule 1 (the same direction as that on the individual moving charges).

Why no force acts on a current carrying conductor when it is placed parallel to the magnetic field?

Answer: No force acts on a current carrying conductor when it is placed parallel to the magnetic field. For example:- You can see in a DC motor, the coil which is parallel to the magnetic field lines does not experience a force, but the coil which is perpendicular to the magnetic field lines experiences.

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Will there be a force on a current carrying wire in a magnetic field if the current and fields are parallel?

For any given combination of current and magnetic field strength, the force is greatest when the direction of the current is 90° to the direction of the magnetic field. There is no motor effect force if the current and magnetic field are parallel to each other.

Does a wire with a current have an electric field?

There is an electric current in a wire because there is an electric field inside the wire. It’s this electric field that pushes the free electrons to get them to move along.

Does current affect electric field?

We also are familiar with the fact that voltage difference between two points is also proportional to the electric field magnitude. This naturally implies that, current is proportional to the magnitude of electric field between the two points the current flows.

In what direction does the force on the wire act?

The magnetic force on a current-carrying wire is perpendicular to both the wire and the magnetic field with direction given by the right hand rule.

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When a current carrying conductor is placed in a magnetic field which type of force acts on the conductor?

A current carrying conductor placed in a magnetic field experiences a force. If the direction of the field and that of current are mutually perpendicular to each other, then the force acting on the conductor will be perpendicular to both and that can be determined using the Fleming’s left-hand rule.

What is the condition of electromagnetic induction?

The condition necessary for the production of current by electromagnetic induction is that there must be a relative motion between the wire and the magnet.

In which direction is the force on the wire?

What is the force between two current carrying wires?

The official definition of the ampere is: One ampere of current through each of two parallel conductors of infinite length, separated by one meter in empty space free of other magnetic fields, causes a force of exactly 2 × 10−7 N/m on each conductor.

How does a magnetic field exert force on a current carrying wire?

The magnetic field exerts a force on a current-carrying wire in a direction given by the right hand rule 1 (the same direction as that on the individual moving charges). This force can easily be large enough to move the wire, since typical currents consist of very large numbers of moving charges. We can derive an expression for

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How do you find the force on a current carrying wire?

The force on a current-carrying wire in a magnetic field is F = IlB sin θ. Its direction is given by RHR-1. Example 1. Calculating Magnetic Force on a Current-Carrying Wire: A Strong Magnetic Field Calculate the force on the wire shown in Figure 1, given B = 1.50 T, l = 5.00 cm, and I = 20.0 A.

How does a magnetic field affect the direction of current?

One wire sets up a magnetic field that influences the other wire, and vice versa. When the current goes the same way in the two wires, the force is attractive. When the currents go opposite ways, the force is repulsive.

How do you measure the force of a magnetic field?

Measuring the force exerted by a magnetic field on the wire with a known current flowing through it offers one method to determine the strength of the magnetic field. L . gives the direction of the flow of current in the wire. In this experiment, the angle between F = ILB .