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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Ch Ubaid Ullah 06 - Mar - 2026 17 Min 40 Sec 80/120
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Furqan Asif 26 - Mar - 2026 36 Min 02 Sec 72/120
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usman gujjar 02 - Dec - 2024 07 Min 03 Sec 70/120
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Taha 18 - Mar - 2026 17 Min 17 Sec 68/120
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hussain naqvi 19 - Sep - 2024 18 Min 43 Sec 65/120
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Humera Noor 27 - Dec - 2024 19 Min 28 Sec 65/120
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suzi 10 - Feb - 2026 08 Min 22 Sec 64/120

ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	A ten ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts	A. 1310 W B. 670 W C. 810 W D. 1210 W
2	Electron volt is the unit of.	A. Potential difference B. Energy C. Resistance D. Capacitance
3	In Pakistan electricity is supplied for domestic use at 220 V, it is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in Pakistan is R, the resistance of a 60 W bulb for use in USA will be	A. 2 R B. R/4 C. R/2 D. R
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	A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be	A. 1840 KeV B. 1/1840 KeV C. 1 KeV D. 920 KeV
6	Specific resistance of a wire depends upon	A. Length B. Cross-section area C. Mass D. None
7	The force of repulsion between two point charges is F, when these are at a distance 0.1 m apart. Now the point charges are replaced by sphere of radii 5 cm each having the same charge as that of the respective point charges. The distance between their centre is again kept 0.1 m ; then the force of repulsion will	A. Increase B. Decrease C. Remain F D. Become 10F/9
8	The thermistors are usually made of	A. Metals with low temperature coefficient of resistivity B. Metals with high temperature coefficient of resistivity C. Metal oxides with high temperature coefficient of resistivity D. Semi conducting materials having low temperature coefficient of resistivity
9	The unit of resistivity is	A. ohm B. ohm-m² C. ohm-meter D. ohm-m^-1
10	Ohm is the unit of	A. current B. capacitance C. energy D. resistance

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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 intensity at a point due to a point charge

If a charged spherical conductor of radius 10 cm has potential V at a point distance 5 cm from its centre, then the potential at a point distance 15 cm from the centre will be

If the length of the conductor is double and its cross sectional area is halved, its conductance will

The unit of conductance is

The SI unit of electric field intensity is

Electric generators which convert mechanical energy into

The electric intensity outside the two oppositely charged parallel metal plates is

The speed of randomly moving electrons depends upon

The SI unit of capacitance is

A closed surface contains two equal and opposite charges. The net electric flux from the surface will be

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

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

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

One joule is equal to

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

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

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

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

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

Ohm established a relation between

The SI unit of permitivity is

If 2.2 kilowatt power is transmitted through 1 10 ohm line at 22000 volt, the power loss in the form of heat will be

If one volt is needed to cause a current of one ampere to flow in a conductor, its resistance is

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

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

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

In Pakistan electricity is supplied for domestic use at 220 V, it is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in Pakistan is R, the resistance of a 60 W bulb for use in USA will be

A wire is bent into a ring of radius R is given a charge q. The magnitude of the electrical field at the centre of the ring is

The substances whose resistance decreases with the increase in temperature these substances have coefficient of

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