According to Faraday's laws of electromagnetic induction, whenever a varving flux link with a conductor an emf is induced.
EMF is the voltage across a coil (or motor) due to changes in the magnetic field. If you change the current the coil will generate a voltage (in the opposite direction of the current). So it is not the field but the change that matters.
change in temperature causes change in pressure
The property of one coil due to which it oposses the change of current in the other coil is called mutual inductance b\w two coil.
Distance objects can be seen to "ripple" on a hot day because of refraction. As light from a distance object makes the trip to the observer, it passes through air of slightly varying densities. This causes it to "change course" to a degree, which is refraction. It is this thermally induced refraction that is responsible for the "ripple" we see, and for the mirage we sometimes hear about.
the rotation of the earth around the sun
Basis of transformer is change in current. Whenever current flows it causes magnetic field. Current flow in primary coil causes magnetic field around secondary. Since current is changing as in the case of AC, magnetic filed also changes. As per Faraday's law change in magnetic field causes induced voltage at secondary coil. In case of DC there wont be any change in current, thus no change in magnetic field leading to no induced voltage.
A change in current causes a voltage to be induced into an inductive circuit, which opposes that change of current. This is because the change in current is accompanied by a change in magnetic flux which 'cuts' the conductors and induces a voltage into them.
When a current in a coil increases or decreases, there is a change in magnetic flux linking the coil,an e.m.f. is induced. This is called self induced e.m.f. and the process is called self induction.
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.
Lenz's Law states that the induced voltage in a circuit will create a magnetic field that opposes the change in magnetic flux that caused it. This is to ensure that the original source of the changing magnetic field does not have its energy absorbed or dissipated.
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.
The direction of the induced electric field is perpendicular to the change in magnetic field.
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.
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.
Current can be induced in a conductor by changing the magnetic field around it. This change in magnetic field creates an electromotive force (EMF) within the conductor, which in turn causes the flow of current. This phenomenon is known as electromagnetic induction and is the basis for the operation of generators and transformers.
The induced current in a loop is directly affected by changes in magnetic field strength. When the magnetic field strength increases or decreases, it causes a change in the magnetic flux passing through the loop, which in turn induces an electric current in the loop according to Faraday's law of electromagnetic induction.
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.