ECAT Pre General Science Chapter 12 online mcq test with answers for Physics chapter 12 (Electrostatics)

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ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be	A. 5μF B. 20μF C. 10μF D. 15μF
2	Which one of the following is the unit of electric field intensity	A. JC^-1 B. Vm^-1 C. Cm^-1 D. CJ^-1
3	The force between two chares 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become	A. 7.20 N B. 11.25 N C. 22.50 N D. 45.00
4	The electric lines of force are	A. Imaginary B. Physically existing everywhere C. Physically existing near the charge D. All of the above
5	One coulomb per second is equal to	A. One volt B. One ampere C. One hom D. One henry
6	The electric flux is linked with a surface will be maximum when	A. The surface is held parallel to the electric field B. The surface is held perpendicular to the electric field C. The surface makes an angle of 45° with the electric field D. All of the above
7	The conductivity of a superconductor is	A. Infinite B. Very large C. Very small D. Zero
8	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%
9	Electron volt is the unit of.	A. Potential difference B. Energy C. Resistance D. Capacitance
10	One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is	A. 0.1 V B. 8 V C. 2 V D. 0.5 V

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ECAT Pre General Science Physics Chapter 12 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 12 Electrostatics

ECAT Pre General Science Physics Chapter 12 Electrostatics

The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is

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

The SI unit of capacitance is

The statement "the electric force of repulsion or attraction between two point charges is directly proportional to the product of the charges and inversely proportional to square of the distance between them" refer to

In a Milikian's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10-19C. The number of excess electrons on the drop is

The energy stored in a charge capacitor

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

The value of electrical constant of proportionality k is

If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be

In a charged capacitor the energy is stored in

Which of the following represents an electric current?

Cause of heat production in a current carrying conductor is

The electric field intensity at a point due to a point charge

In bringing an electron towards another electron, electrostatic potential energy of system

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

Calculate the amount of charge flowing in 2 minutes in a wire of resistance 10Ωwhen a potential difference of 20 V is applied between its ends

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

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

Consider a spherical shell of metal at he centre of which a positive point charge is kept

A 10 F capacitor is charged to a potential difference of 50 V and is connected to another uncharged capacitor in parallel. Now the common potential difference becomes 20 volt.The capacitance of second capacitor is

Resistor is a device which convert electric energy to

Electron volt is the unit of.

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

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

Heating effect caused by an electric circuit is written

The SI unit of electric field intensity is

In a voltmeter the conduction takes place due to

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

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

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ECAT Physics Chapter 12 Important MCQ's

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In a Milikian's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10^-19C. The number of excess electrons on the drop is

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