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An electrical current.
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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 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 is Magnetic flux density unit?
"Magnetic flux density" is also known as the magnetic field,The SI unit for this is the Tesla, written as T.CommentMagnetic flux density is not "also known as the magnetic field". It describes the intensity of a magnetic field.
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.
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.
Does a moving magnetic field produce an electric current?
yes*edit: don't confuse moving with changing. A change in magnetic field strength/direction will induce an electric current.
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.
What is induced by the rapid alternation of a magnetic field?
you would induce voltage therefore chanfing the magnetic field
What can induce an electrical current in a wire?
A magnetic field can induce an electrical current in a wire.
Why the transformer is not working in DC supply?
Transformers operate on the inductance principle; they need a changing magnetic field to induce a voltage into the secondary winding. Either you must supply a changing magnetic field to one winding, or supply that winding with DC and move the core (like in a microphone).
Can a round magnet produce electricity if it's rotating?
The shape of the magnet is unimportant. Any moving magnet can induce a voltage in a wire. Or any changing magnetic field. If the magnet rotates, its magnetic field will change, so yes.
Creates a magnetic field?
Both magnetic materials and moving electric charges induce magnetic fields.
Can a changing magnetic field produce a steady electric field?
Not a steady but a moving electric field can be produced by ever changing magnetic field.
Electricity running through a wire will induce field?
A magnetic field around the wire.
Why is a vibrating electric field an example of an electromagnetic wave?
The changing electric field will produce a magnetic field; the changing magnetic field will cause an electric field; both will propagate as a wave - an electro-magnetic wave.
