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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
Name some sources of direct current.
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Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?
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(a) increasing the number of turns in the armature coil
(b) winding the coil on a soft iron armature
(c) increasing the size of the gap in which the armature turns
(d) increasing the speed of rotation
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Draw a labelled diagram of a simple a.c. generator.
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An AC generator is provided with ______ slip rings that rotate with the coil.
State one factor that affects the magnitude of induced current in an AC generator.
