20.What is electromagnetic induction?On what factors does the value of induced current produced in a circuit depend?Name and state the rule used for determination of direction of induced current. State one application of this phenomenon in everyday life.

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Q. Explain the meaning of the words 'electromagnetic' and 'induction' in the term electromagnetic induction. On what factors does the value of induced current produced in a circuit depend? Name and state the rule used for determination of the direction of induced current. State one practical application of this phenomenon in everyday life.

(a) Describe briefly one way of producing an induced e.m.f.
(b) State one factor that determines the magnitude of induced e.m.f. in part (a) above.
(c) What factor determines the direction of induced e.m.f. in part (a) above?

Q. Which rule is used to know the direction of induced current in a circuit?

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