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The polarity of the magnetic field of a wire reverses when you change the direction of the current in the wire.

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What is the direction of the induced current in a loop when there is a change in magnetic field direction?

When there is a change in the direction of the magnetic field in a loop, an induced current is generated in the loop in a direction that opposes the change in the magnetic field.


How do you change the direction of a magnetic field?

You can change the direction of a magnetic field by reversing the flow of electric current in a wire or by changing the orientation of a permanent magnet. Alternating the direction of current in a coil can also reverse the direction of the magnetic field it produces.


How can one determine the direction of induced current in a circuit?

The direction of induced current in a circuit can be determined using Lenz's Law, which states that the induced current will flow in a direction that opposes the change in magnetic field that caused it. This means that the direction of the induced current will be such that it creates a magnetic field that opposes the original change in magnetic field.


How can we use Lenz's Law to determine the direction of induced current in each case?

Lenz's Law states that the direction of the induced current in a circuit is such that it opposes the change in magnetic flux that caused it. By applying Lenz's Law, we can determine the direction of the induced current by considering the direction of the changing magnetic field and the direction of the induced current that would oppose that change.


What happens when the electric current is reversed on am electromagnet?

When the electric current is reversed on an electromagnet, the direction of the magnetic field is also reversed. This means that the north and south poles of the electromagnet switch places. This change in polarity can have various effects depending on the application, such as reversing the direction of motion in a motor or changing the direction of attraction or repulsion in a magnetic system.

Related Questions

What happens to magnetic field of a wire when you change the direction of the current in the wire?

Direction of the magnetic lines too would get changed


Which happens to the magnetic field of a wire when you change the direction of the current in the wire The magnetic field?

The magnetic field collapses to zero, then builds up again for the current in the opposite direction.


What happens to the magnetic field of wire when you change the direction of a current of the wire?

In that case, the magnetic field will also be reverted.


What is the direction of the induced current in a loop when there is a change in magnetic field direction?

When there is a change in the direction of the magnetic field in a loop, an induced current is generated in the loop in a direction that opposes the change in the magnetic field.


How do you change the direction of a magnetic field?

You can change the direction of a magnetic field by reversing the flow of electric current in a wire or by changing the orientation of a permanent magnet. Alternating the direction of current in a coil can also reverse the direction of the magnetic field it produces.


How can one determine the direction of induced current in a circuit?

The direction of induced current in a circuit can be determined using Lenz's Law, which states that the induced current will flow in a direction that opposes the change in magnetic field that caused it. This means that the direction of the induced current will be such that it creates a magnetic field that opposes the original change in magnetic field.


What happen to the magnetic field of a wire when change the direction of the current in the wire?

Direction of the magnetic lines too would get changed


What additional factor will be change if the direction of a current flow is change?

direction of magnetic field


How can we use Lenz's Law to determine the direction of induced current in each case?

Lenz's Law states that the direction of the induced current in a circuit is such that it opposes the change in magnetic flux that caused it. By applying Lenz's Law, we can determine the direction of the induced current by considering the direction of the changing magnetic field and the direction of the induced current that would oppose that change.


What happens when the electric current is reversed on am electromagnet?

When the electric current is reversed on an electromagnet, the direction of the magnetic field is also reversed. This means that the north and south poles of the electromagnet switch places. This change in polarity can have various effects depending on the application, such as reversing the direction of motion in a motor or changing the direction of attraction or repulsion in a magnetic system.


What is the statment of lenz law?

The direction of an induced emf or current is such that the magnetic field created by the induced current opposes the change in magnetic flux that created the current.


What does the lenz law state?

The direction of an induced emf or current is such that the magnetic field created by the induced current opposes the change in magnetic flux that created the current.