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Explain the meanings of words ‘Electromagnetic’ and ‘Induction’ in the term electromagnetic induction. List three factors on which the value of induced current produced in a circuit depends. Name and state the rule used to determine the direction of induced current. State one practical application of this phenomenon in everyday life. |
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Answer» The process by which a changing magnetic field in a conductor induces a current in another conductor is called electromagnetic induction. By moving a magnet towards or away from a coil. We take a coil with several turns and it is connected to a sensitive galvanometer. When a bar magnet is moved towards the coil, we see a deflection in the galvanometer. This deflection dies down after some time. The deflection is because of the induced current. Hence, the value of induced current produced in a circuit depends on the following factors:
The rule used of determination of direction of induced current is Fleming's right-hand rule. |
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