0
What law states that the induced current is always in such a direction as to oppose the change in the magnetic field that generated it?
It is called Lenz's law. Refer to the below related link for its Wikipedia article.
It is a direct result of Faraday's law.
If you look at the equation..
ε = - dΦ/dt
it is basically the negative sign that says the magnetic field of the induced current will be in the oppose direction of the change in the magnetic field.
Do the following things.
• Curl the fingers of your right hand.
• Let your thumb represent the direction that the magnetic flux is increasing.
• Because of the negative sign, the electric field, and thus the generated current will be in the opposite direction of you fingers.
• So flip your hand over so that your fingers point in the opposite direction.
• Now your thumb points in the opposite direction and that represents the direction of the magnetic field that the current generates.
What else can I help you with?
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.
What is the direction of the induced current in a coil when it is exposed to a changing magnetic field?
When a coil is exposed to a changing magnetic field, an induced current is generated in the coil. The direction of this induced current is such that it creates a magnetic field that opposes the change in the original magnetic field. This phenomenon is described by Faraday's law of electromagnetic induction.
What is the direction of the induced current when a magnetic field is rapidly changing in a coil of wire?
When a magnetic field is rapidly changing in a coil of wire, an induced current is generated in the wire. The direction of this induced current is such that it creates a magnetic field that opposes the change in the original magnetic field. This phenomenon is described by Faraday's law of electromagnetic induction.
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 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.
What is the direction of the induced current in a coil when it is exposed to a changing magnetic field?
When a coil is exposed to a changing magnetic field, an induced current is generated in the coil. The direction of this induced current is such that it creates a magnetic field that opposes the change in the original magnetic field. This phenomenon is described by Faraday's law of electromagnetic induction.
What is the direction of the induced current when a magnetic field is rapidly changing in a coil of wire?
When a magnetic field is rapidly changing in a coil of wire, an induced current is generated in the wire. The direction of this induced current is such that it creates a magnetic field that opposes the change in the original magnetic field. This phenomenon is described by Faraday's law of electromagnetic induction.
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 is the direction of induced current in lenzs law?
According to Lenz's Law, the direction of the induced current is such that it opposes the change in magnetic flux that produced it. If the magnetic field through a loop is increasing, the induced current will flow in a direction that creates a magnetic field opposing that increase. Conversely, if the magnetic field is decreasing, the induced current will flow in a direction that attempts to maintain the original magnetic field. This principle ensures the conservation of energy in electromagnetic systems.
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 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.
How is induced current in a wire generated and what factors influence its strength?
Induced current in a wire is generated when there is a change in magnetic field around the wire. Factors that influence the strength of the induced current include the rate of change of the magnetic field, the number of turns in the wire, and the material of the wire.
What should you do to verify the direction of the induced current in a circuit?
To verify the direction of the induced current in a circuit, you can use the right-hand rule. Point your right thumb in the direction of the changing magnetic field and curl your fingers. The direction your fingers curl will indicate the direction of the induced current.
What are the factors that determines the size and direction of the generated emf?
The size of the generated electromotive force (emf) is determined by the rate at which the magnetic field changes within a circuit, and the number of turns in the coil. The direction of the emf is determined by Lenz's law, which states that the induced current will flow in a direction that opposes the change in magnetic field that produced it.
What is the induced current in the inner loop?
The induced current in the inner loop is the flow of electric charge that is generated by a changing magnetic field passing through the loop.
