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प्रश्न
Observe the figure and answer the following questions.
a) Identify the machine shown in figure.
b) Write a use of this machine.
c) How transformation of energy takes place in this machine.
उत्तर
a) The instrument shown in figure is generator.
b) This machine is used to generate electricity.
c) The generator generates electricity through following transformations :
Mechanical Energy → Electrical Energy
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संबंधित प्रश्न
State the principle of an electric generator.
What type of generator is used at Power Stations?
Explain the principle of an electric generator.
An electric generator converts:
(a) electrical energy into mechanical energy.
(b) mechanical energy into heat energy.
(c) electrical energy into chemical energy.
(d) mechanical energy into electrical energy.
The frequency of alternating current (a.c.) supply in India is:
(a) 0 Hz
(b) 50 Hz
(c) 60 Hz
(d) 100 Hz
Name and state the principle of a simple a.c. generator. What is its use?
An a.c. generator changes the ______energy to ______ energy.
State change that you would make to convert an A.C. generator into a D.C. generator. Illustrate the change by a diagram.
State true or false:
The frequency of AC is 50 Hz.
A device for producing electric current is ______.
Draw a neat diagram of an AC generator and explain its working.
A coil of insulated copper wire is connected to a galvanometer forming a loop and a magnet is:
A: Held stationary
B: Moved away along its axis
C: Moved towards along its axis
D: There will be an induced current in
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is withdrawn from inside the coil?
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is held stationary inside the coil?
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.
