ECAT Pre Computer Science Chapter 12 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 12 Electrostatics

Try The MCQ's Test For ECAT Physics Chapter 12 Electrostatics

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ECAT Physics Chapter 12 Electrostatics

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Question # 1

The resistance of an incandescent lamp is

Question # 2

Capacitance of two or more capacitors

Question # 3

The unit of resistance is

Question # 4

The resistance of a conductor does not depend on its

Question # 5

Coulomb's force between two point charges depends upon

Question # 6

If 2.2 kilowatt power is transmitted through 1 10 ohm line at 22000 volt, the power loss in the form of heat will be

Question # 7

Equal charges are given to two spheres of different radii. The potential will

Question # 8

Which of the following represents an electric current?

Question # 9

Magnetic effect at a point caused due to flow a current depend upon the

Question # 10

The capacity of a parallel plat capacitor depends on the

Question # 11

In a Milikian's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10-19C. The number of excess electrons on the drop is

Question # 12

If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be

Question # 13

An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be

Question # 14

The resistivity of a substance depends upon the

Question # 15

Which one of the following has larger value of relative permitivity Erat room temperature?

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ECAT Physics Chapter 12 Important MCQ's

Sr.# Question Answer
1 One electron volt is equal to
A. 1.6 x 1019eV
B. 6.25 x 1018 eV
C. 1.6 x 1018 eV
D. 6.25 x 1019eV
2 The SI unit of conductivity is
A. ohm-m
B. ohm-1m-1
C. ohm-m-1
D. ohm-1m
3 The SI unit of permitivity is
A. Nm2C2
B. N-1m-2C2
C. NmC2
D. Nm2C-1
4 The current through a metallic conductor is due to the motion of
A. protons
B. neutrons
C. electrons
D. free electrons
5 In bringing an electron towards another electron, electrostatic potential energy of system
A. Decreases
B. Increases
C. Remains uncharged
D. Becomes zero
6 When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to
A. One joule
B. One erg
C. One electron volt
D. None of these
7 An electric charge at rest is
A. Only an electric field
B. Only a magnetic field
C. Both electric and magnetic fields
D. None of the above
8 Electric generators which convert mechanical energy into
A. solar energy
B. thermal energy
C. kinetic energy
D. electrical energy
9 The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is
A. 9 x 105V
B. 9 V
C. 8 x 106V
D. 80 V
10 Taking the earth to be a spherical conductor of diameter 12.8 x 103km. Its capacity will be
A. 711μF
B. 611μF
C. 811μF
D. 511μF

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