Advertisements
Advertisements
Question
Which statement/statement is/are correct?
1. An ammeter is connected in series in a circuit and a voltmeter is connected in parallel.
2. An ammeter has a high resistance.
3. A voltmeter has a low resistance.
(a) 1, 2, 3
(b) 1, 2
(c) 2, 3
(d) 1
Advertisements
Solution
The correct statement is:
(d) 1
An ammeter is connected in series in a circuit and a voltmeter is connected in parallel. The other two statements are incorrect as an ammeter should have a very low resistance and a voltmeter should have a high resistance.
APPEARS IN
RELATED QUESTIONS
What is an electric current?
If the current through a floodlamp is 5 A, what charge passed in 10 seconds?
(a) 0.5 C
(b) 2 C
(c) 5 C
(d) 50 C
What happens to the other bulbs in a series circuit if one bulb blows off?
Give three reasons why different electrical appliances in a domestic circuit are connected in parallel.
Tick(✓) the correct choice in the following:
The outer casing of an electric iron is generally connected to earth in order
to
Find the effective resistance in the following circuit diagrams (Fig.):
If the potential differences between two parts of a thundercloud is 10s V,
what is the amount of energy given up during the passage of 20 coulombs?
(a)2x10-7J
(b)200J
(c)Sx106 j
(d)2x 109J
(e)2x 1010 J
My mother was operating washing machine on Sunday morning. Suddenly, she saw a spark coming out of the electric board and the electric current in the house failed. An electrician was called to look into the matter. What should he have noticed.
What determines the direction of flow of electrons between two charged conductors kept in contact?
State the conditions for the flow of charge in a circuit from one point to the other.
Give the electric current unit.
Coulomb is the SI unit of ____________.
Problems for practice:
If 3A current flows through a circuit, then convert the current in terms of a milliampere.
A current of 2A passing through the conductor produces 80 J of heat in 10 seconds. The resistance of the conductor is ______.
