ECAT Pre Engineering Physics Chapter 12 MCQ Test With Answer

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ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	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
2	If an electron of charge 'e' is accelerated through a potential difference V., it will acquire energy	A. Ve B. V/e C. e/V D. 2Ve
3	The graphical representation of ohm's law is	A. hyperbola B. straight line C. ellipse D. parabola
4	Electron volt is the unit of.	A. Potential difference B. Energy C. Resistance D. Capacitance
5	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
6	Ohm is the unit of	A. current B. capacitance C. energy D. resistance
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	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	A. Coulomb's law B. Gauss's law C. Biot-Sarwat law D. Ampere's law
9	The speed of randomly moving electrons depends upon	A. pressure B. volume C. temperature D. mass
10	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

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ECAT Pre Engineering Physics Chapter 12 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 12 Electrostatics

Physics ECAT Pre Engineering Chapter 12 Electrostatics

Ohm's law states that

When a dielectric material is introduced between the plates of a charged condenser the electric field between the plates

Physicist George Simon ohm was a

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

The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart, with force of repulsion between the spheres to be 10-19N, 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

The SI unit of electric flux is

Coulomb's force between two point charges depends upon

In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes

The earth's potential is taken as

The resistance of an incandescent lamp is

The fractional change in resistance per kelvin is known as

One electron volt is equal to

A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?

Which one of the following causes production of heat when current is set up in a wire?

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

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

The charge carriers in electrolyte are positive and negative

The electric flux from a closed surface

Taking the earth to be a spherical conductor of diameter 12.8 x 103km. Its capacity will be

Cause of heat production in a current carrying conductor is

The SI unit of current is

The conventional current in a circuit is defined as " current which passes from a point at higher potential to a point at lower potential as if it represent a movement of

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

The SI unit of conductivity is

One joule is equal to

The value of electrical constant of proportionality k is

A one microfarad capacitor of a TV is subjected to 4000 V potential difference. The energy stored in capacitor is

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ECAT Physics Chapter 12 Important MCQ's

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

The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart, with force of repulsion between the spheres to be 10^-19N, is

Taking the earth to be a spherical conductor of diameter 12.8 x 10³km. Its capacity will be