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प्रश्न
Distinguish between Direct current and alternating current.
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उत्तर
| Direct current | Alternating current | |
| 1. | Magnitude of direct current from a source remains the same. i.e., nonoscillatory. | Alternating current varies in magnitude continuously. i.e., oscillatory. |
| 2. | Direction remains the same. | Direction reverses periodically, i.e., after equal intervals of time. |
| 3. | This type of current is not used much for household purposes but used in batteries, torches, etc. | This type of current is used in electrical household appliances such as electric heater, refrigerators, electric irons, etc. |
| 4. | Frequency of D.C. is zero. | Frequency of A.C. in India is 50 Hz, i.e., its cycle changes in `1/50` second. |
| 5. | Produced by D.C. generator. | Produced by A.C. generator. |
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संबंधित प्रश्न
Out of an A.C. generator and a D.C. generator:
which one uses a commutator (split rings)?
which one uses slip rings?
What is the difference between alternating current and direct current?
In what respect does the construction of an A.C. generator differ from that of a D.C. generator?
What normally drivers the alternators in a Thermal Power Station? What fuels can be used to heat eater in the boiler?
What is the frequency of A.C. supply in India?
State an important advantage of using alternating current (a.c.) over direct current (d.c.).
The frequency of AC is _______.
Match the columns.
| Column A | Column B |
| 1) Direct current | a) Oscillatory |
| 2) Alternating current | b) Non oscillatory |
The frequency of the alternating current is 50 Hz.
The domestic electricity in India is an ac with a frequency ______ of Hz.
Conceptual question.
Can electroplating be possible with alternating current?
In India, the frequency of the alternating current is, ______.
The device used to convert AC to DC is called ______.
Define the following:
Rectifier
Complete the correlation:
DC : Non-oscillatory current flowing in one direction : : AC : ______
