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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Nitalaya Hassan 23 - Dec - 2024 06 Min 15 Sec 80/120
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Talha Khalil 18 - Jun - 2026 10 Min 55 Sec 80/120
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Fatima Anis 26 - Dec - 2024 13 Min 35 Sec 80/120
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Abdullah Zubair 25 - Dec - 2024 14 Min 30 Sec 80/120
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Ch Ubaid Ullah 06 - Mar - 2026 17 Min 40 Sec 80/120
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Ahmad Sufyan 05 - May - 2026 18 Min 20 Sec 80/120
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Hanook Masih 25 - Sep - 2024 12 Min 15 Sec 75/120
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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

ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	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
2	Current provided by a battery is maximum when	A. Internal resistance equal to external resistance B. Internal resistance is greater than external resistance C. Internal resistance is less then external resistance D. None of these
3	The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart, with force of repulsion between the spheres to be 10^-19N, is	A. 25 B. 225 C. 625 D. 1250
4	The resistivity of a substance depends upon the	A. length B. mass C. area D. temperature
5	The nature of capacity of electrostatic capacitor depends on	A. Shape B. Size C. Thickness of plates D. Area
6	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	A. 2 R B. R C. R/2 D. R/4
7	Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?	A. 3RΩ B. 2R/4Ω C. R/3Ω D. 2R/3Ω
8	The unit of resistivity is	A. ohm B. ohm-m² C. ohm-meter D. ohm-m^-1
9	The graphical representation of ohm's law is	A. hyperbola B. straight line C. ellipse D. parabola
10	The unit of intensity of electric field is	A. newton/coluomb B. jule/coluomb C. volt x metre D. newton/metre

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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 SI unit of capacitance is

The unit of conductance is

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

Electric potential of earth is taken to be zero because the earth is good

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

The resistivity of a substance depends upon the

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

When a dielectric material is introduced between the plates of a charged condenser the electric field between the plates

A piece of fuse wire melts when a current of 15 ampere flows through it. With this current. If it dissipates 22.5 W, the resistance of fuse wire will 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

If the distance of separation between two chares is increased, the electrical potential energy of the system will

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

The resistance of the given conductor can be increased by

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

At any point on the right bisector of the line joining two equal and opposite charges

The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is

The thermistors are usually made of

Current provided by a battery is maximum when

Resistance of a conductor depends upon

The material in the form of wire or rod or plate which leads the current into or cut of the electrolyte is known as

Capacitance of two or more capacitors

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

Electron volt is the unit of.

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

The speed of randomly moving electrons depends upon

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

Coulomb's force between two point charges depends upon

An electric dipole is at the centre of a hollow sphere of radius r. The total normal electric flux through the sphere is (here Q is the charge and d is the distance between the two charges of the dipole)

The resistance of 20 cm long wire is 10Ω. When the length is changed to 40 cm. The new resistance is

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

ECAT Physics Chapter 12 Important MCQ's

Test Questions

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