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

A medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance

Question # 2

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

Question # 3

Thermocouple is an arrangement of two different metals

Question # 4

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

Question # 5

Heating effect caused by an electric circuit is written

Question # 6

A conducting wire is drawn to double its length. Final resistivity of the material will be

Question # 7

Physicist George Simon ohm was a

Question # 8

A 100 W, 200 V bulb is connected to a 160 volts supply. The actual power consumption would be

Question # 9

Coulomb's force between two point charges depends upon

Question # 10

The nature of capacity of electrostatic capacitor depends on

Question # 11

Potentiometer is more sensitive than voltmeter, because

Question # 12

Which one of the following is the unit of electric field intensity

Question # 13

Some charge is being given to a conductor. Then its potential

Question # 14

One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is

Question # 15

106electrons are moving through a wire per second, the current developed is

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ECAT Physics Chapter 12 Important MCQ's

Sr.# Question Answer
1 Electron volt is the unit of
A. Potential difference
B. Energy
C. Resistance
D. Capacitance
2 The energy required to charge a capacitor of 5μF by connecting D.C. source of 20 KV is
A. 10 KJ
B. 5 KJ
C. 2 KJ
D. 1 KJ
3 If electric and gravitational force on an electron in a uniform electric field will be
A. E=mg/q
B. E=q/mg
C. E=,g/q
D. E=qg/m
4 Electric generators which convert mechanical energy into
A. solar energy
B. thermal energy
C. kinetic energy
D. electrical energy
5 Electric potential of earth is taken to be zero because the earth is good
A. Semiconductor
B. Conductor
C. Insulator
D. Dielectric
6 An alpha particle is accelerated through a potential difference of 106volt. Its kinetic energy will be
A. 1 MeV
B. 2 MeV
C. 4 MeV
D. 8 MeV
7 The electric flux from a closed surface
A. Is independent of the shape of the surface
B. Depends on the charge enclosed by the surface
C. Both a and b
D. None of the above
8 If the distance of separation between two chares is increased, the electrical potential energy of the system will
A. Increase
B. Decrease
C. May increase or decrease
D. Remain the same
9 If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be
A. 6 ohm
B. 4 ohm
C. zero ohm
D. 1.33 ohm
10 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%

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