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

Thermocouple is an arrangement of two different metals

Question # 2

The relation between the charge Q of a parallel plate capacitor and the P.D between its plates is

Question # 3

If the distance of separation between two chares is increased, the electrical potential energy of the system will

Question # 4

Resistance of a conductor is increased, the currant will

Question # 5

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

Question # 6

Which of the following does not obey ohm's law?

Question # 7

What is the current is a 2 x 106ohm resistor having a potential difference of 2 x 103volts?

Question # 8

A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is

Question # 9

In RC series circuit the time during which the capacitor acquires 0.63 times the equilibrium charge is called

Question # 10

The charge per unit time through any cross-section of a conductor is called

Question # 11

Resistor is a device which convert electric energy to

Question # 12

Free electrons are

Question # 13

Electric flux is defined by the relation

Question # 14

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

Question # 15

The fractional change in resistance per kelvin is known as

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ECAT Physics Chapter 12 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 The material in the form of wire or rod or plate which leads the current into or cut of the electrolyte is known as
A. voltmeters
B. resistance
C. electrode
D. current
4 The ohm's is defined as
A. 1 ampere / 1 volts
B. 1 coulomb / 1 volt
C. 1 volt / 1 ampere
D. 1 volt / 1 coulomb
5 Electron volt is the unit of.
A. Potential difference
B. Energy
C. Resistance
D. Capacitance
6 A condenser of capacity 50μF is charged to 10 V.The energy stored is
A. 1.25 x 10-3J
B. 3.75 x 10-3J
C. 2.5 x 10-3J
D. 5 x 10-3J
7 The capacity of a parallel plat capacitor depends on the
A. Type to metal used
B. Thickness of plates
C. Potential applied across the plates
D. Separation between the plates
8 A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is
A. Zero
B. 0.5Ω
C. 1.1Ω
D. 5.0Ω
9 Equal charges are given to two spheres of different radii. The potential will
A. Be more on the smaller sphere
B. Be more on the bigger sphere
C. Be equal on both the sphere
D. Depend on the nature of the material of the sphere
10 The SI unit of permitivity is
A. Nm2C2
B. N-1m-2C2
C. NmC2
D. Nm2C-1

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