Advertisements
Advertisements
Question
Answer the following questions based on the given graph.

- Identify which curve shows AC and DC.
- What is the frequency of AC and DC?
Advertisements
Solution
- Straight line: DC (Direct current)
Curve: AC (Alternating current) - Frequency = `1/"Time period"`
∴ AC = 1 Hz and DC = 0 Hz
APPEARS IN
RELATED QUESTIONS
What is the difference between alternating current and direct current?
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?
Name some sources of direct current and some of alternating 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.
State an important advantage of using alternating current (a.c.) over direct current (d.c.).
Alternating current : oscillatory :: Direct current : _______
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.
Right or wrong sentence.
The frequency of the alternating current is 50 Hz.
Distinguish between Direct current and alternating current.
The domestic electricity in India is an ac with a frequency ______ of Hz.
Conceptual question.
Can electroplating be possible with alternating current?
The frequency of electricity produced by DC generator is equal to ____________.
Define the following:
Frequency
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?
