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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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
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Zaka Ullah 09 - Nov - 2024 07 Min 20 Sec 60/120

ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	Electron volt is the unit of.	A. Potential difference B. Energy C. Resistance D. Capacitance
2	A charge of 0.1 c accelerated through a potential difference of 1000V acquires kinetic energy	A. 200 J B. 100 J C. 1000 J D. 400 J
3	The current through a metallic conductor is due to the motion of	A. protons B. neutrons C. electrons D. free electrons
4	The electric field will be uniform	A. Near a positive point charge B. Near a negative point charge C. Between two oppositely charged parallel metal plates D. None of above
5	At ordinary temperature, an increase in temperature increases the conductivity of	A. Conductor B. Semiconductor C. Insulator D. Alloy
6	The value of electrical constant of proportionality k is	A. 9 x 10⁹Nm²C^-2 B. 9 x 10^-9Nm²C^-2 C. 9 x 10¹⁰Nm²C² D. 9.85 x 10^-12N^-1C^-2
7	A conducting wire is drawn to double its length. Final resistivity of the material will be	A. Double of the original one B. Half of the original one C. One fourth of the original one D. Same as original one
8	The electric flux from a closed surface	A. Is independent of the shape of the surface B. Depends on the charge enclosed by the surface C. Both a and b D. None of the above
9	Heating effect caused by an electric circuit is written	A. H = I²Rt B. H = I²R C. H = IR²t D. H = IR²
10	Surface density of charge is defined as	A. Charge per unit volume B. Charge per unit length C. Charge per unit area D. Charge per unit mass

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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

The capacity of a parallel plat capacitor depends on the

The fractional change in resistance per kelvin is known as

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

If a 40 watt light bulb burns for 2 hours. how much heat is generated

The SI unit of current is

The unit of intensity of electric field is

If electric and gravitational force on an electron in a uniform electric field will be

A point charge A of charge +4μC and another B of charge -1μC are placed in air at a distance 1 m apart. Then the distance of the point on the line joining the charge B, where the resultant electric field is zero, is (in m)

The resistivity of a substance depends upon the

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

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

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

When three identical bulbs of 60 watt, 200 volt rating are connected in series to a 200 volt supply, the power drawn by them will be

Solar cell converts sunlight directly into

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

The potential difference across the conductors should be maintained constant by connecting the ends of wire to the terminal of a device called a source of

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

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 charge Q is divided into two parts q and Q - q and separated by a distance R. The force of repulsion between them will be maximum when

A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?

Ohm established a relation between

Heating effect caused by an electric circuit is written

The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is

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

The unit of conductance is

The minimum charge on any object can not be less than

Cause of heat production in a current carrying conductor is

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

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ECAT Physics Chapter 12 Important MCQ's

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