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Question
- Describe briefly one way producing an induced e.m.f?
- State one factor that determines the magnitude of induced e.m.f. in part (a) above.
- What factor determines the direction of induced e.m.f. in part (a) above?
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Solution
- A DYNAMO, which is a coil that moves constantly in a magnetic field, can generate an induced current.
- Magnitude of induced e.m.f depend upon:
- The change in the magnetic flux.
- The time in which the magnetic flux changes.
- The direction of induced e.m.f depends on Fleming's right hand rule and Lenz's law.
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