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प्रश्न
What determines the frequency of a.c. produced in a generator?
उत्तर
The number of coil rotations, or alternating e.m.f., determines the frequency of the a.c. produced in the generator. Induced e.m.f. (e = e0 sin 2π nt) where n is the number of rotation made by coil per second and the current i = i0 sin 2π nt.
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संबंधित प्रश्न
State the principle of an electric generator.
A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each______.
The device used for producing electric current is called a ______.
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 change should be made in an a.c. generator so that it may become a d.c. generator?
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 wire with a green insulation is usually the live wire.
Name and state the principle of a simple a.c. generator. What is its use?
State true or false:
The frequency of AC is 50 Hz.
