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

Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then

Question # 2

One joule is equal to

Question # 3

The electric flux is linked with a surface will be maximum when

Question # 4

The SI unit of electric flux is

Question # 5

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

Question # 6

Resistance of a conductor is increased, the currant will

Question # 7

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

Question # 8

Specific resistance of a wire depends upon

Question # 9

If we increase the distance between two plates of the capacitor, the capacitance will

Question # 10

In a voltmeter the conduction takes place due to

Question # 11

The concept of field theory was put forward by

Question # 12

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

Question # 13

A piece of fuse wire melts when a current of 15 ampere flows through it. With this current. If it dissipates 22.5 W, the resistance of fuse wire will be

Question # 14

Electron volt is the unit of.

Question # 15

The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is

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ECAT Physics Chapter 12 Important MCQ's

Sr.# Question Answer
1 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
A. 0.1 watt
B. 1 watt
C. 10 watt
D. 100 watt
2 The SI unit of current is
A. watt
B. coulomb
C. volt
D. ampere
3 Electric potential of earth is taken to be zero because the earth is good
A. Semiconductor
B. Conductor
C. Insulator
D. Dielectric
4 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
5 A ten ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts
A. 1310 W
B. 670 W
C. 810 W
D. 1210 W
6 A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is
A. Charge Q
B. Potential V
C. Capacity
D. Energy U
7 The relation between charge 'Q' and current 'I' is given by
A. Q = I/t
B. Q = It
C. Q = I2t
D. Q = I2/t
8 Solar cell converts sunlight directly into
A. potential energy
B. thermal energy
C. mechanical energy
D. electrical energy
9 An electric dipole is at the centre of a hollow sphere of radius r. The total normal electric flux through the sphere is (here Q is the charge and d is the distance between the two charges of the dipole)
A. Q/4πr2
B. 2Q/4πr2
C. Q.d
D. Zero
10 Magnetic effect at a point caused due to flow a current depend upon the
A. Quantity of current
B. Distance from current
C. Both the quantity of current and distance from current element
D. None of the all

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