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प्रश्न
State the use of the principle of electromagnetic induction.
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उत्तर
It is used as a back-up for the lifts in tall buildings in case of electricity failure.
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संबंधित प्रश्न
State Lenz’s Law.
- 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?
In which of the following case does the electromagnetic induction occur?
Why does it become more difficult to move a magnet towards a coil when the number of turns in the coil has been increased?
A D.C generator works on the principle of ____________.
The direction of the magnetic field around a straight conductor carrying current can be determined by ______.
The laws of induction were given by ______.
Fleming’s left-hand rule is also known as the dynamo rule.
Express Faraday-Lenz's law of electromagnetic induction in an equation form.
State two factors on which the magnitude of induced e.m.f. in a coil depend.
