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प्रश्न
Name and state the principle of a simple a.c. generator. What is its use?
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उत्तर
An A.C. generator works on the principle of 'electromagnetic induction'.
Statement: Whenever a coil is rotated in a magnetic field, the magnetic flux linked with the coil changes, and therefore, an EMF is induced between the ends of the coil. Thus, a generator acts like a source of current if an external circuit containing load is connected between the ends of its coil.
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संबंधित प्रश्न
State whether the following statement is true or false.
An electric motor converts mechanical energy into electrical energy.
Name the phenomenon which is made use of in an electric generator.
What type of generator is used at Power Stations?
The frequency of alternating current (a.c.) supply in India is:
(a) 0 Hz
(b) 50 Hz
(c) 60 Hz
(d) 100 Hz
State whether the following statement are true of false:
A miniature circuit breaker (MCB) works on the heating effect of current.
The current induced in a closed circuit only if there is ______.
What determines the frequency of a.c. produced in a generator?
Explain the difference:
AC generator and DC generator.
A device for producing electric current is ______.
To convert an AC generator into DC generator ____________.
