2nd Year Physics Chapter 12 Online MCQ Test for 12th Class Physics Chapter 12 (Electrostatics)

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Chapter 12 Test

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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 12 Online MCQ's Test"

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Physics ICS Part 2 Chapter 12 Online MCQ's Test

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Question # 1

Charge carriers in electrolytes are.

Question # 2

When the medium is insulator the elecrostatic force between the charges is

Question # 3

The relative permitivity of air is

Question # 4

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

Question # 5

Special organs called ampullae of lorenzenite are present in.

Question # 6

Due to polarization, electric field E.

Question # 7

One of the applications of electrostatic induction is

Question # 8

The SI unit of relative permittivity is.

Question # 9

NC-1 is the SI unit is

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:

Question # 11

The total flux through a closed surface.

Question # 12

A proton is about 1840 time than an electron. When it is accelerated by a potencial difference if 1 kV, its kinetic energy will be:

Question # 13

Two metallic sphere of radius 2 cm and 4 cm get equal quantity of charge. Which has greater surface charge density ?

Question # 14

The number of lines per unit area passing perpendicular through an area is called

Question # 15

One electron volt is equal to.

Question # 16

If the distance between the two charged bodies is halved, the force between them becomes.

Question # 17

Intensity of field inside a hollow charged sphere will be.

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 the force between two charge is 28 N. If paraffin wax of relative permittivity 2.8 is introduced between the charges as medium, then the force reduces to.
A. 25 N
B. 20 N
C. 10 N
D. 15 N
2 Due to polarization, electric field E.
A. Increase
B. Decrease
C. First increases then decreases
D. Remain same
3 The SI unit of relative permittivity is.
A. Fm-1
B. C2N-1m-2
C. Nm2C-2
D. No unit
4 Flux through any closed surface is:
A. 1/ε2∘ times the total charge enclosed in it
B. ε2∘ time the total charge enclosed in it
C. 1/ε∘ ties the total charge enclosed in ti
D. ε∘ time the total charge enclosed in it
5
Drum of photocopier is made of.
A. Copper
B. Aluminum
C. Nickel
D. Cobalt
6 Selenium is a
A. Insulator
B. Photoconductor
C. Conductor
D. First insulator then conductor
7 The number of electrons in one coulomb charge is equal to
A. 6.2 x 1018 electrons
B. Zero electrons
C. 1.6 x 10-22 electrons
D. 6.2 x 1021 electrons
8 If F1 and F2 are teh magnetic forces acting on a particle and electron respectively when moving perpendicular to the magnetic field then.
A. F1=F2
B. F1>F2
C. F1<F2
D. F1 = 4F2
9 An ECG records the _____ between points on human skin generated by electric process i the heart.
A. Heart beat
B. Pulse rate
C. Pressure
D. Voltage
10 Electric potencial of earth is taken to be zero because the earth is good:
A. Semiconductor
B. Conductor
C. Insulator
D. Dielectric

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