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 capacity of a parallel plat capacitor depends on the

Question # 2

The material in the form of wire or rod or plate which leads the current into or cut of the electrolyte is known as

Question # 3

Electric potential of earth is taken to be zero because the earth is good

Question # 4

The capacitance of a parallel plate capacitor depends upon

Question # 5

When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to

Question # 6

The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is

Question # 7

The substances whose resistance decreases with the increase in temperature these substances have coefficient of

Question # 8

The unit of resistance is

Question # 9

The SI unit of permitivity is

Question # 10

Electric generators which convert mechanical energy into

Question # 11

The potential difference across each resistance in series combination is

Question # 12

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

Question # 13

Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 12 Important MCQ's

Sr.# Question Answer
1 Force acting upon a charged particle kept between the plates of a charged condenser if F. IF one of the plates of the condenser is removed, force acting on the same will become
A. Zero
B. F/2
C. F
D. 2F
2 Electron volt is the unit of
A. Potential difference
B. Energy
C. Resistance
D. Capacitance
3 A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J
A. 5
B. 0.5
C. 0.005
D. 50
4 The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is
A. 21 x 103+ 10%
B. 23 x 101+ 10%
C. 21 x 103+ 5%
D. 12 x 103+ 5%
5 Three resistors of resistance 2,3 and 6 ohms are connected in parallel, their equivalent resistance is
A. 11.0 ohm
B. 1.0 ohm
C. 7.0 ohm
D. 3.0 ohm
6 The capacitance of a parallel plate capacitor depends upon
A. Area of the plates
B. Separation between the plates
C. Medium between the plates
D. All of the above
7 A 100 W, 200 V bulb is connected to a 160 volts supply. The actual power consumption would be
A. 64 W
B. 80 W
C. 100 W
D. 125 W
8 A uniform resistance wire of Length L and diameter d has a resistance R. Another wire of same material has length, 4L and diameter 2d, the resistance will be
A. 2 R
B. R
C. R/2
D. R/4
9 The minimum charge on any object can not be less than
A. 1.6 x 10-19C
B. 3.2 x 10-19C
C. 1.0 C
D. 4.8 x 10-19C
10 The liquid which conduct current is known as
A. heating effect
B. chemical energy
C. electrolyte
D. ohm's law

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