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प्रश्न
Suggest two ways in an a.c. generator to produce a higher e.m.f.
State two ways to produce a higher e.m.f. in an a.c. generator.
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उत्तर
Two ways in an a.c generator to produce a higher e.m.f. are:
- By increasing the speed of rotation of the coil.
- By increasing the number of turns of coil.
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संबंधित प्रश्न
Which sources produce alternating current?
A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each______.
A d.c. generator is based on the principle of:
(a) electrochemical induction
(b) electromagnetic induction
(c) magnetic effect of current
(d) heating effect of current
The frequency of alternating current (a.c.) supply in India is ______.
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.
Draw a neat labeled diagram of an A.C. generator
A flat coil of wire rotates at a constant speed about an axis perpendicular to a uniform magnetic field. Draw a graph to show how the induced e.m.f. varies relative to the positions of the coil during its one complete rotation. At what position of the coil, the e.m.f. has the maximum value?
The part of the AC generator that passes the current from the armature coil to the external circuit is ______.
