ECAT Pre Computer Science Chapter 12 MCQ Test With Answer

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

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Anayat Ali 04 - Apr - 2024 01 Min 07 Sec 60/60
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Abdullah 07 - Mar - 2024 08 Min 13 Sec 60/60
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Alishba Farooq 08 - Mar - 2024 16 Min 42 Sec 55/60
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Abdullah Baloch 28 - Jul - 2024 00 Min 21 Sec 50/60
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iqra ashfaq 02 - Mar - 2024 00 Min 10 Sec 40/60
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Malik Mureed Awan 02 - Dec - 2024 01 Min 58 Sec 40/60
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mashal zainab 11 - Mar - 2024 05 Min 58 Sec 40/60
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Inamurehman rehmanbajwa 27 - May - 2024 10 Min 39 Sec 40/60
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sweet home 17 - Dec - 2024 15 Min 50 Sec 40/60
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hamid shoukat 25 - Nov - 2025 16 Min 32 Sec 36/60
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Lozina Jalil 29 - Aug - 2024 03 Min 13 Sec 35/60
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Salvaa Sheikh 20 - Sep - 2024 03 Min 21 Sec 35/60
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Sohaib Ali 13 - Oct - 2024 04 Min 38 Sec 35/60
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hareema gull 27 - May - 2024 06 Min 28 Sec 35/60
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Muhammad Abdur.Rahman Khan 01 - Sep - 2024 07 Min 03 Sec 35/60

ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	A capacitor is charged with a battery and then it is disconnected. A slab of dielectric is now inserted between the plates, then	A. The charge in the plates reduces and potential difference increase B. Potential difference between the plates increase, stored energy decreases and charge remains the same C. Potential difference between the plates decreases and charge remains unchanged D. None of the above
2	The earth's potential is taken as	A. Negative B. Positive C. Zero D. Infinite
3	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)	A. 2 B. 1 C. 0.5 D. 1.5
4	The ratio of the gravitational force F_gto the electrostatic force F_ebetween two electrons at the same distance apart is approximately	A. 9.8 B. 24 x 10¹⁹ C. 24 x 10⁴² D. 24 x 10^-44
5	If the length of the conductor is double and its cross sectional area is halved, its conductance will	A. Increase four fold B. Become one-fourth C. Become one-half D. Remains unchanged
6	The SI unit of conductivity is	A. ohm-m B. ohm^-1m^-1 C. ohm-m^-1 D. ohm^-1m
7	The electric intensity outside the two oppositely charged parallel metal plates is	A. Maximum B. Minimum C. Zero D. Infinite
8	A one microfarad capacitor of a TV is subjected to 4000 V potential difference. The energy stored in capacitor is	A. 8 J B. 16 J C. 4 x 10^-3J D. 2 x 10^-3J
9	Taking the earth to be a spherical conductor of diameter 12.8 x 10³km. Its capacity will be	A. 711μF B. 611μF C. 811μF D. 511μF
10	For two resistance wires joined in parallel, the resultant resistance is 6/5 ohm. When one of the resistance wire breaks, the effective resistance becomes 2 ohm. The resistance of the broken wire is	A. 3/5 ohm B. 2 ohm C. 6/5 ohm D. 3 ohm

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ECAT Pre Computer Science Chapter 12 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 12 Electrostatics

ECAT Physics Chapter 12 Electrostatics

The energy stored in a charge capacitor

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

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 charge per unit time through any cross-section of a conductor is called

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

An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be

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

The electrode connected with the positive terminal of the current source is called

One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is

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

One joule is equal to

The value of electrical constant of proportionality k is

The conductivity of a superconductor is

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

The SI unit of capacitance is

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

ECAT Physics Chapter 12 Important MCQ's

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

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