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What else can I help you with?
What does a rapid change of a magnetic field induce?
It does not have to be positive or negative either one will produce reversal of the voltage applied by a factor
What is lenz law of electromagnetic induction?
Lenz's law states that 'for a current induced in a conductor by a changing magnetic field, the current is in such a direction that its own magnetic field opposes the change that produced it.'
Where do magnetic field lines cross?
Magnetic field lines don't cross.
What are Maxwell's equations?
Maxwell's equations are a set of four fundamental equations that describe how electric and magnetic fields interact and propagate. They are: Gauss's law, which relates electric fields to charge distributions; Gauss's law for magnetism, stating that there are no magnetic monopoles; Faraday's law of induction, which describes how changing magnetic fields induce electric currents; and Ampère-Maxwell law, which relates magnetic fields to electric currents and changing electric fields. Together, these equations form the foundation of classical electromagnetism and explain a wide range of physical phenomena.
What is meant by magnetic permeability?
All materials are magnetized when placed in the magnetic field . The material magnetized by the effect of a magnetic field is called magnetic permeability.
What does a changing magnetic field induce in a conductor?
A changing magnetic field induces an electric current in a conductor.
Can a changing magnetic field produce a steady electric field?
Yes, a changing magnetic field can induce a steady electric field. This is described by Faraday's law of electromagnetic induction, where a changing magnetic field creates an electric field in the surrounding space.
Why does a transformer require alternating current?
In order to induce voltage as an output, a changing magnetic field is needed. To create a changing magnetic field in the transformer a changing current and that is an alternating current.
Will changing the electric field will have no effect on the magnetic fields of a body?
Changing the electric field in a region can induce a magnetic field according to Maxwell's equations. This is known as electromagnetic induction. So, changing the electric field can indeed have an effect on the magnetic fields of a body.
What can induce an electrical current in a wire?
An electrical current can be induced in a wire by a changing magnetic field passing through the conductor. This phenomenon is known as electromagnetic induction, and it is the basis for the operation of generators and transformers. Moving the wire through a magnetic field or changing the magnetic field around the wire can result in the generation of an electrical current.
Does an electric current produces a magnetic field?
yes*edit: don't confuse moving with changing. A change in magnetic field strength/direction will induce an electric current.
What causes a vibrating magnetic field?
A vibrating magnetic field can be caused by alternating current flowing through a conductor, which generates a changing magnetic field around the conductor. This changing magnetic field can induce a current in nearby conductors, causing them to vibrate as well. Other sources of vibrating magnetic fields can include electromagnetic radiation and electrical motors.
How can you induce a magnetic field in a piece of iron?
You can induce a magnetic field in a piece of iron by exposing it to a magnetic field, passing an electric current through it, or by rubbing it with a magnet.
Is it true that a magnetic field is surrounded by moving electric charges?
Yes, a changing magnetic field will induce an electric field, leading to the movement of electric charges. This phenomenon is described by Faraday's law of electromagnetic induction.
How is electricity and megnetisem related?
When a change occurs within a magnetic field there is an an electrical current present within a wire. As the electricity flows through the wire a magnetic field. The changing magnetic field creates a magnetic field. As this pattern continues these two fields induce each other through space.
Why emf is not zero when field current is zero?
Even when the field current is zero, there can still be a residual magnetic field present in the system, which can induce an electromotive force (emf) in a nearby conductor. This phenomenon is explained by Faraday's law of electromagnetic induction, where a changing magnetic field can induce a voltage in a closed loop.
At what rate is the magnetic field changing?
The rate at which the magnetic field is changing is known as the magnetic field's rate of change.
