A magnet is moved towards a coil (i) quickly (ii) slowly, then the induced e.m.f. is
larger in case (i)
smaller in case (i)
equal in both the cases
larger or smaller depending upon the radius of the coil
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An induced e.m.f. is produced when a magnet is plunged into a coil. The strength of the induced
e:m.f. is independent of
the strength of the magnet
number of turns of coil
the resistivity of the wire of the coil
speed with which the magnet is moved
A coil of insulated wire is connected to a battery. If it is taken to galvanometer, its pointer is deflected, because
the induced current is produced
the coil acts like magnet
the number of turns in the coil of the galvanometer are changed
None of these
Whenever the magnetic flux linked with an electric circuit changes, an emf is induced in the circuit. This is called
electromagnetic induction
lenz's law
hysteresis loss
kirchhoff's laws 111
Induced emf,
According to Faraday's law of electromagnetic induction
electric field is produced by time varying magnetic flux.
magnetic field is produced by time varying electric flux.
magnetic field is associated with a moving charge.
Farady's law states that time varying magnetic flux can induce an e.m.f.
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