ECAT Pre Engineering Physics Chapter 12 MCQ Test With Answer

Top Scorers Of Physics ECAT Pre Engineering Chapter 12 Electrostatics MCQ`s Test

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Mehreen Ather 02 - Dec - 2024 30 Min 19 Sec 90/120
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Salvaa Sheikh 13 - Sep - 2024 24 Min 16 Sec 85/120
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Sualeh Murtaza 15 - Nov - 2024 05 Min 29 Sec 80/120
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Zaka Ullah 09 - Nov - 2024 07 Min 20 Sec 60/120
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Abdulrehman Haroon 26 - Sep - 2024 28 Min 20 Sec 60/120
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123 Abcd 07 - Nov - 2024 12 Min 46 Sec 55/120
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Abdul rafay Malghani 02 - Dec - 2024 14 Min 25 Sec 55/120
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Mehpara Khatoon 07 - Aug - 2024 24 Min 16 Sec 55/120

ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	The electric field intensity at a point due to a point charge	A. Falls off inversely as the distance B. Falls off inversely as the square of distance C. Remains unchanged with distance D. Increase directly as square of distance
2	Consider a spherical shell of metal at he centre of which a positive point charge is kept	A. The electric filed is zero outside the shell B. The electric field is zero everywhere C. The electric field is zero in the region inside the shell D. The electric field is non-zero in both regions outside and inside the shell
3	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
4	The unit of conductance is	A. ohm B. meter C. mho D. ohm-meter
5	Resistance of a conductor is increased, the currant will	A. Decrease B. Increase C. Remain the same D. None of these
6	A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is	A. Charge Q B. Potential V C. Capacity D. Energy U
7	A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is	A. C B. C/2 C. Zero D. 2C
8	Ohm established a relation between	A. voltage and resistance B. voltage and charge C. voltage and current D. voltage resistance and charge
9	In a building, there are 15 bulbs of 40 watts, 5 bulbs of 100 watts, 5 fans of 80 watts and a heater of 1 kilowatt. The voltage of the electric main is 220 volts. The minimum efficiency of the main fuse of the building will be	A. 0.4 A B. 11.4 A C. 9.8 A D. 10.6 A
10	Battery is charged in motor cars, which is based on	A. Chemical effect B. Magnetic effect C. Electric effect D. None

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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

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

A point charge Q is placed at the mid-point of a line joining two charges. 4q and q. if the net force on charge q is zero. then Q must be equal to

The conductivity of a superconductor is

Capacitance of two or more capacitors

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

Coulomb force, when any material medium is placed between two charges

A capacitor is charged with a battery and then it is disconnected. A slab of dielectric is now inserted between the plates, then

The powers of tow electric bulbs are 100 W and 200 W. Both of them are joined with 220 V mains. The ratio of resistances of their filaments will be

Cause of heat production in a current carrying conductor is

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

The current through a metallic conductor is due to the motion of

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

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

The unit of intensity of electric field is

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

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

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

The value of electrical constant of proportionality k is

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

The capacity of a parallel plat capacitor depends on the

Resistance of a conductor is increased, the currant will

Resistance of a conductor depends upon

Potentiometer is more sensitive than voltmeter, because

The electric field will be uniform

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

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

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

Free electrons are

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

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

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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

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