This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Electrostatics - 20
1.
An object gains excess negative charge after being rubbed against another object, which is..............?
a) Negatively charged
b) Either all of these
c) Positively charged
d) Neutral
2.
A substance containing equal no of opposite charges separated by a small distance is known as:
a) Insulator
b) Super conductor
c) Dipole
d) LED
3.
According to Coulomb’s law, what happens to the attraction of two oppositely charged objects as their distance of separation decreases?
a) Cannot be determined
b) Remains unchanged
c) Decreases
d) Increases
4.
The direction of the electric lines of force is indicated by the direction of motion of the proton.
a) False
b) True
5.
Like charges attract while unlike charges repel.
a) False
b) True
6.
What is ‘F’ in the formula of Coulomb’s law?
a) F is the force between the two charges
b) F is Faraday’s constant
c) F is permittivity of space
d) F is proportionality constant
7.
The closed surface where Gauss’s law is applied is called:
a) Rectangular surface
b) Gaussian surface
c) Triangular surface
d) Circular surface
8.
What is true about point charges?
a) Distance between them is equal to their sizes
b) Sizes are equal to the distance between them
c) Sizes are very small as compared to distance between them
d) Distance between them is very small as compared to sizes
9.
The atom of an element consists of two parts
a) False
b) True
10.
Energy stored in a capacitor
a) ½ CV
2
b) ½ CV
-2
c) ½ CV
3
This is more feedback!
This is the feedback!
