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प्रश्न
Match the columns.
| Column A | Column B |
| 1) Direct current | a) Oscillatory |
| 2) Alternating current | b) Non oscillatory |
उत्तर
| Column A | Column B |
| 1) Direct current | b) Non oscillatory |
| 2) Alternating current | a) Oscillatory |
संबंधित प्रश्न
What type of current is given by (i) a dry cell, and (ii) a power House generator?
What normally drivers the alternators in a Thermal Power Station? What fuels can be used to heat eater in the boiler?
What do you understand by the terms 'direct current' and 'alternating current'?
The frequency of direct current (d.c.) is:
(a) 0 Hz
(b) 50 Hz
(c) 60 Hz
(d) 100 H
Explain ‘Electric generator’ with the help of the following points:
- Diagram of an AC Generator with labelling
- Principle of an electric generator
- The function of slip rings
- Any two uses of a generator.
The frequency of AC is _______.
The alternating current is an oscillatory current.
Distinguish between Direct current and alternating current.
What is the role of fuse, used in series with any electrical appliance? Why should a fuse with defined rating not be replaced by one with a larger rating?
What is common to both direct and alternating current?
In India, the frequency of the alternating current is, ______.
The device used to convert AC to DC is called ______.
Define the following:
Frequency
Define the following:
Rectifier
Answer the following questions based on the given graph.
- Identify which curve shows AC and DC.
- What is the frequency of AC and DC?
Why is an alternating current (A.C.) considered to be advantageous over direct current (D.C.) for the long distance transmission of electric power?
