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प्रश्न
The frequency of AC is _______.
पर्याय
20 Hz
50 Hz
25 Hz
75 Hz
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उत्तर
The frequency of AC is 50 Hz.
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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?
What type of current is given by a dry cell?
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 term ‘direct current’?
State an important advantage of alternating current over direct 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.
Alternating current : oscillatory :: Direct current : _______
The alternating current is an oscillatory current.
Right or wrong sentence.
The frequency of the alternating current is 50 Hz.
What is common to both direct and alternating current?
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?
