Define electromagnetic induction. Explain the ways by which magnetic field linked through a coil can be changed.
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Electromagnetic induction is the process by which a changing magnetic field in a conductor induces a current in another conductor. Two ways by which electric conductors can be induced in a coil are: (i) By moving the coil in a magnetic field. (ii) By changing the magnetic field around the coil.
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electromagnetic induction is a process by which a changing magnetic field in a conductor induces a current in another conductor to a by which electric conductor can be included in a coil are
1. by moving the coil in a magnetic field and
2. by changing the magnetic field around the coil
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