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Physics ICS Part 2 Chapter 12 Online MCQ's Test MCQs With Answers
Question # 1
The electric field created by positive charge is
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Radially inward
Zero
Circular
Radially outward
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Question # 2
Coulomb's force is:
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Conservative force
None conservative force
Similar to frictional force
None of the above
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Question # 3
If the medium between the charges is not free space then electrostatic force will.be
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Increase
Decrease
Remain same
None of these
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Question # 4
The middle region of electric field is:
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Maximum field spot
Zero field spot
Perpendicular field spot
All of above
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Question # 5
The negative of the potential gradient is
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Electrostatic force
Electromotive force
Potential difference
Electric field intensity
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Question # 6
Charge on electron is
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1.6 x 10
-19
C
1.6 x 10
19
C
1.6 x 10
-17
C
1.6 x 10
17
C
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Question # 7
A charge on 4 coulomb is in the field of intensity 4N/C the force on the charge is.
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Uniform
Non uniform
Weak
Strong
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Question # 8
Which one of the following is correct
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All of above
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Question # 9
Dielectric constant
εr
for air is:
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1
1.006
1.0002
1.0006
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Question # 10
A charge Q is divided into tweo parts q and Q-q and seperated by a distance R. The force of equilibrium between them will be maximum when:
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q=Q/4
q=Q/2
q=Q
None of these
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Question # 11
Drum of photocopier is made of.
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Copper
Aluminum
Nickel
Cobalt
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Question # 12
Gauss's law can only be applied to.
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A curved surface
A flat surface
A closed surface
A surface of any shape
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Question # 13
Which material should be inserted between the plates of a capacitor in order to increase its capacitance.
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Copper
Mica
Iron
Tin
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Question # 14
Electric potential at a distance ''r'' from ''q'' is:
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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
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Question # 15
If the distance between the two charged bodies is halved, the force between them becomes.
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Double
Half
Four times
One times
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Question # 16
SI unit of electric flux is.
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NmC
1
Nm
-1
C
1
Nm
2
C
-1
Nm
3
C
2
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Question # 17
Farad is defined as
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"Coulomb/Volt
Ampere /Volt
Coulomb /Joule
Volt/Coulomb
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Question # 18
The electrons in one coulomb change is equal to.
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1.6 x 10
-19
2.25 x 10
-19
6.25 x 10
-18
6.25 x 10
-19
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