Advertisements
Advertisements
Questions
State an important advantage of using alternating current (a.c.) over direct current (d.c.).
State one advantage of using an a.c. over the d.c.
Solution
An important advantage of using alternating current (a.c.) over direct current (d.c.) is that alternating current can be easily transformed to higher or lower voltage levels while it is difficult to do that with direct current.
APPEARS IN
RELATED QUESTIONS
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 is the frequency of A.C. supply in India?
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 alternating current is an oscillatory current.
The frequency of the alternating current is 50 Hz.
Distinguish between Direct current and alternating current.
Conceptual question.
Can electroplating be possible with alternating current?
The frequency of electricity produced by DC generator is equal to ____________.
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
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?
How is the type of current used in household supply different from the one given by a battery of dry cells?
