Advertisements
Advertisements
Question
Name some sources of direct current and some of alternating current.
Solution
Some sources of direct current are dry cells, battery, car battery and D.C. generators.
Some sources of alternating current are A.C. generators, power stations.
APPEARS IN
RELATED QUESTIONS
What normally drivers the alternators in a Thermal Power Station? What fuels can be used to heat eater in the boiler?
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.).
The frequency of AC is _______.
The frequency of the alternating current is 50 Hz.
Distinguish between Direct current and alternating current.
Define the following:
Frequency
Answer the following questions based on the given graph.
- Identify which curve shows AC and DC.
- What is the frequency of AC and DC?
How is the type of current used in household supply different from the one given by a battery of dry cells?