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प्रश्न
What type of current is given by (i) a dry cell, and (ii) a power House generator?
उत्तर
| Device | Type of current given | |
| 1. | Dry cell | D.C. current |
| 2. | A power house generator | A.C. current |
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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?
Name some sources of direct current and some of alternating 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
State an important advantage of using alternating current (a.c.) over direct current (d.c.).
Match the columns.
| Column A | Column B |
| 1) Direct current | a) Oscillatory |
| 2) Alternating current | b) Non oscillatory |
The frequency of electricity produced by DC generator is equal to ____________.
Define the following:
Frequency
Define the following:
Rectifier
Why is an alternating current (A.C.) considered to be advantageous over direct current (D.C.) for the long distance transmission of electric power?
