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	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
2	10⁶electrons are moving through a wire per second, the current developed is	A. 1.6 x 10^-19 B. 1 A C. 1.6 x 10^-15A D. 10⁶A
3	The electric intensity at infinite distance from the point charge will be	A. Infinite B. Positive C. Zero D. Negative
4	A wire of radius r has resistance R. If it is stretched to a wire of r/2 radius, then the resistance becomes	A. 2R B. 4R C. 16R D. Zero
5	If we increase the distance between two plates of the capacitor, the capacitance will	A. Increase B. Decrease C. Remain same D. First increase then decrease
6	The relation V = IR represents	A. Ampere law B. Faraday's law C. Ohm's law D. Len's law
7	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
8	Resistance of a conductor is increased, the currant will	A. Decrease B. Increase C. Remain the same D. None of these
9	The substances whose resistance decreases with the increase in temperature these substances have coefficient of	A. positive temperature B. negative temperature C. absolute temperature D. zero temperature
10	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

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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

Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?

The fractional change in resistance per kelvin is known as

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

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

The SI unit of permitivity is

Potentiometer is more sensitive than voltmeter, because

The potential difference across each resistance in series combination is

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

The SI unit of electric flux is

An alpha particle is accelerated through a potential difference of 106volt. Its kinetic energy will be

Resistance of a conductor depends upon

If the two charges in Coulomb's law have double distance between them, then electric force

Specific resistance of a wire depends upon

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

Physicist George Simon ohm was a

The electric field due to an infinite long thin wire at a distance R varies as

The minimum charge on any object can not be less than

Two point charges A and B separated by a distance R attract each other with a force of 12 x 10-3N. The force between A and B when the charges on them are doubled and distance is halved

If an electron of charge 'e' is accelerated through a potential difference V., it will acquire energy

The dot product of electric field intensity E and vector area A is called

If two bulbs one of 60 W and other of 100 W are connected in parallel, then which one of the following will flow more?

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

Three resistors of resistance 2,3 and 6 ohms are connected in parallel, their equivalent resistance is

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

A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor

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 unit of conductance is

The resistance of the given conductor can be increased by

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An alpha particle is accelerated through a potential difference of 10⁶volt. Its kinetic energy will be

Two point charges A and B separated by a distance R attract each other with a force of 12 x 10^-3N. The force between A and B when the charges on them are doubled and distance is halved

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

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