Physics
Grade-10
Easy
Question
The condition for the phenomenon of electromagnetic induction is that there must be a relative motion between:
- The galvanometer and magnet
- The coil of wire and galvanometer
- The coil of wire and magnet
- The magnet and galvanometer
Hint:
Magnetic flux varies when a magnet and coil are moving in relative motion to one another, which causes the coil to produce an electromotive force. Induced current is produced by this electromotive force.
The correct answer is: The coil of wire and magnet
The condition for the phenomenon of electromagnetic induction is that there must be a relative motion between: the magnet and the coil.
- When a magnet gets in contact with the coil, it creates a strong magnetic field.
- The relative motion between the magnet and the coil induces the current flow.
- This phenomenon is called electromagnetic induction.
- In the case of electromagnetic induction, an induced emf is produced as a result of a shifting magnetic field over a wire loop.
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