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प्रश्न
Match the columns.
| Column A | Column B |
| 1) Direct current | a) Oscillatory |
| 2) Alternating current | b) Non oscillatory |
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उत्तर
| Column A | Column B |
| 1) Direct current | b) Non oscillatory |
| 2) Alternating current | a) Oscillatory |
संबंधित प्रश्न
What is the difference between alternating current and direct current?
What type of current is given by a dry cell?
In what respect does the construction of an A.C. generator differ from that of a D.C. generator?
What do you understand by the term ‘direct current’?
Name some sources of direct current.
State an important advantage of alternating current over direct current.
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.
State an important advantage of using alternating current (a.c.) over direct current (d.c.).
Alternating current : oscillatory :: Direct current : _______
Right or wrong sentence.
The frequency of the alternating current is 50 Hz.
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?
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?
Complete the correlation:
DC : Non-oscillatory current flowing in one direction : : AC : ______
Why is an alternating current (A.C.) considered to be advantageous over direct current (D.C.) for the long distance transmission of electric power?
