Advertisements
Advertisements
Question
Why is an alternating current (A.C.) considered to be advantageous over direct current (D.C.) for the long distance transmission of electric power?
Solution
Long transmission distances of alternating current can be achieved with little loss of electrical energy. As a result, it is preferable to direct current for long-distance electric energy transmission.
RELATED QUESTIONS
What type of current is given by (i) a dry cell, and (ii) a power House generator?
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 terms 'direct current' and 'alternating current'?
State an important advantage of using alternating current (a.c.) over direct current (d.c.).
The frequency of AC is _______.
Match the columns.
| Column A | Column B |
| 1) Direct current | a) Oscillatory |
| 2) Alternating current | b) Non oscillatory |
The alternating current is an oscillatory 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?
Complete the correlation:
DC : Non-oscillatory current flowing in one direction : : AC : ______
How is the type of current used in household supply different from the one given by a battery of dry cells?
