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प्रश्न
Name the phenomenon which is made use of in an electric generator.
उत्तर
Electric generator works on the principle that when a straight conductor is moved in a magnetic field, current is induced in the conductor. This phenomenon is called electromagnetic induction.
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संबंधित प्रश्न
Name some sources of direct current.
Which sources produce alternating current?
What type of generator is used at Power Stations?
Each one of the following changes will increase emf (or voltage) in a simple generator except:
(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
What energy conversion does take place in a generator when it is in use?
State true or false:
The frequency of AC is 50 Hz.
The part of the AC generator that passes the current from the armature coil to the external circuit is ______.
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is withdrawn from inside the coil?
Observe the following diagram and answer the questions.
- Explain the construction of the equipment shown in the figure.
- How is AC generated?
State one factor that affects the magnitude of induced current in an AC generator.
