ECAT Pre Computer Science Chapter 12 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 12 Electrostatics

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ECAT Physics Chapter 12 Electrostatics

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Question # 1

If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be

Question # 2

The capacitance of a parallel plate capacitor depends upon

Question # 3

The relation between charge 'Q' and current 'I' is given by

Question # 4

Two point charges A and B separated by a distance R attract each other with a force of 12 x 10-3N. The force between A and B when the charges on them are doubled and distance is halved

Question # 5

Heating effect caused by an electric circuit is written

Question # 6

The unit of intensity of electric field is

Question # 7

A ten ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts

Question # 8

The concept of field theory was put forward by

Question # 9

If we plot graph between potential difference (V) and current (I) obeying ohm's law, it will give us

Question # 10

Two conductors having the same type of charges are connected by a conducting wire. There would not be any amount of charges on them if

Question # 11

The charge carriers in gases are

Question # 12

The conventional current in a circuit is defined as " current which passes from a point at higher potential to a point at lower potential as if it represent a movement of

Question # 13

A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is

Question # 14

A charge of 0.1 c accelerated through a potential difference of 1000V acquires kinetic energy

Question # 15

At any point on the right bisector of the line joining two equal and opposite charges

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ECAT Physics Chapter 12 Important MCQ's

Sr.# Question Answer
1
Question Image
A. 5μF
B. 10μF
C. 3μF
D. 6μF
2 The electric intensity outside the two oppositely charged parallel metal plates is
A. Maximum
B. Minimum
C. Zero
D. Infinite
3 A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be
A. 1840 KeV
B. 1/1840 KeV
C. 1 KeV
D. 920 KeV
4 The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is
A. 4/5Ω
B. 5/4Ω
C. 20Ω
D. 0.05 Ω
5 Two point charges A and B separated by a distance R attract each other with a force of 12 x 10-3N. The force between A and B when the charges on them are doubled and distance is halved
A. 1.92 N
B. 19.2 N
C. 12 N
D. 0.192 N
6 A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is
A. C
B. C/2
C. Zero
D. 2C
7 The concept of field theory was put forward by
A. Franklin
B. Kepler
C. Oersted
D. Michael Faraday
8 The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart, with force of repulsion between the spheres to be 10-19N, is
A. 25
B. 225
C. 625
D. 1250
9 A car battery has e.m.f 12 volt and internal resistance 5 x 10-2ohm. If it draws 60 ampere current, the terminal voltage of the battery will be
A. 5 volt
B. 3 volt
C. 15 volt
D. 9 volt
10 A hollow insulated conduction sphere is given a positive charge of 10μC. What will be the electric field at the centre of the sphere if its radius is 2 meters?
A. Zero
B. 5μC m-2
C. 20μC m-2
D. 8μC m-2

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