More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
Physics ICS Part 2 Chapter 12 Online MCQ's Test MCQs With Answers
Question # 1
Presence of dielectric between two charges always.
Choose an answer
Reduces the electric force
Enhance the electric force
Does not effect electric force
Double the electric force
Previous
Skip
Next
Question # 2
The capacitance of a capacitor depends upon.
Choose an answer
Thickness of plates
Charges on the plates
Voltage applied
Geometry of the capacitor
Previous
Skip
Next
Question # 3
The electrostatic force between two charges is 42 N, If we place a dielectric of E
y
=2.1 between the charges then the force become equal to.
Choose an answer
42 N
88.2 N
20 N
2 N
Previous
Skip
Next
Question # 4
Drum of photocopier is made of.
Choose an answer
Copper
Aluminum
Nickel
Cobalt
Previous
Skip
Next
Question # 5
Electric potential at a distance ''r'' from ''q'' is:
Choose an answer
V
r
= 1/54πε
∘
q/r
2
Vr=1/4πε
∘
2
q/r
V
r
=1/4πε
∘
2q/r
V
r
=1/4πε
∘
q
2
/r
Previous
Skip
Next
Question # 6
A capacitor stores energy in the form of.
Choose an answer
Magnetic field
Heat energy
Electrical energy
Mechanical energy
Previous
Skip
Next
Question # 7
Dielectric constant
εr
for air is:
Choose an answer
1
1.006
1.0002
1.0006
Previous
Skip
Next
Question # 8
The electric field created by positive charge is
Choose an answer
Radially inward
Zero
Circular
Radially outward
Previous
Skip
Next
Question # 9
Due to polarization, electric field E.
Choose an answer
Increase
Decrease
First increases then decreases
Remain same
Previous
Skip
Next
Question # 10
Concept of electric field lines was given by:
Choose an answer
Michelson
Henry
Michael faraday
Oersted
Previous
Skip
Next
Question # 11
If the separation between the plates of a capacitor is doubled then its capacitance become.
Choose an answer
Double
Half
One fourth
Three times
Previous
Skip
Next
Question # 12
Gauss's law can only be applied to.
Choose an answer
A curved surface
A flat surface
A closed surface
A surface of any shape
Previous
Skip
Next
Question # 13
A capacitor is perfect in insulator for.
Choose an answer
Alternating current
Sparking current
Eddy current
Direct current
Previous
Skip
Next
Question # 14
A force of 0.01 N is exerted on a charge 1.2 x 10
-5
C at a certain point. The electric field at that point is
Choose an answer
1.2 x 10
4
N/C
1.2 x 10
4
C/N
8.3 x 10
2
N/C
8.3 x 10
-2
N/C
Previous
Skip
Next
Question # 15
A charge on 4 coulomb is in the field of intensity 4N/C the force on the charge is.
Choose an answer
Uniform
Non uniform
Weak
Strong
Previous
Skip
Next
Question # 16
The SI unit of relative permittivity is.
Choose an answer
Fm-1
C2N-1m-2
Nm2C-2
No unit
Previous
Skip
Next
Question # 17
Force per unit charge is called:
Choose an answer
Gravitational force
Electric field intensity
Coulomb's force
None of these
Previous
Skip
Next
Question # 18
The number of lines per unit area passing perpendicular through an area is called
Choose an answer
Flux
Electric intensity
Both (a) , (b)
None of these
Previous
Skip
Next
Back