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प्रश्न
Explain the difference:
AC generator and DC generator.
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उत्तर
| AC generator | DC generator | |
| i. | It is used to produce alternating current. | It is used to produce direct current. |
| ii. | It has two simple ring-type commutators. | It has a single split-ring commutator. |
| iii. | Frequency of induced current is 50Hz. | Frequency of induced current is 0Hz. |
| iv. | Current changes its directions. | Current flows in same direction. |
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संबंधित प्रश्न
State the principle of an electric generator.
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______.
The essential difference between an AC generator and a DC generator is that
The frequency of alternating current (a.c.) supply in India is ______.
State whether the following statement are true of false:
A wire with a green insulation is usually the live wire.
The current induced in a closed circuit only if there is ______.
Name and state the principle of a simple a.c. generator. What is its use?
What determines the frequency of a.c. produced in a generator?
Draw a labelled diagram of a simple a.c. generator.
In an a.c. generator the speed at which the coil rotates is doubled. How would this affect
- the frequency of output voltage,
- the maximum output voltage is doubled.
An a.c. generator changes the ______energy to ______ energy.
Explain the construction and working of an electric generator (AC) with the help of a neat diagram.
State true or false:
The frequency of AC is 50 Hz.
Draw a neat diagram of an AC generator and explain its working.
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 What will happen if a bar magnet is withdrawn from inside the coil?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.
