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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usman gujjar 02 - Dec - 2024 07 Min 03 Sec 70/120
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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	The resistance of the given conductor can be increased by	A. Increasing the area B. Changing resistivity C. Decreasing the length D. None of the above because change does not matter because in any case the volume remains the same
2	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	A. 180 watt B. 10 watt C. 20 watt D. 60 watt
3	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. Zero B. 10Ω C. 1Ω D. 0.10Ω
4	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
5	The charge carriers in electrolyte are positive and negative	A. protons B. electrons C. ions D. none of these
6	The conductivity of a superconductor is	A. Infinite B. Very large C. Very small D. Zero
7	Battery is charged in motor cars, which is based on	A. Chemical effect B. Magnetic effect C. Electric effect D. None
8	When a dielectric material is introduced between the plates of a charged condenser the electric field between the plates	A. Decreases B. Increases C. No change D. May increase or decresase
9	A hollow insulated conduction sphere is given a positive charge of 10μC. What will be the electric field at the centre of the sphere if its radius is 2 meters?	A. Zero B. 5μC m^-2 C. 20μC m^-2 D. 8μC m^-2
10	The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10^-15is	A. 9 x 10⁵V B. 9 V C. 8 x 10⁶V D. 80 V

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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

When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to

Which one of the following causes production of heat when current is set up in a wire?

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

The SI unit of electric flux is

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

A condenser of capacity 50μF is charged to 10 V.The energy stored is

Electric generators which convert mechanical energy into

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

Physicist George Simon ohm was a

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

The fractional change in resistance per kelvin is known as

The value of electrical constant of proportionality k is

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 a conductor does not depend on its

A conducting wire is drawn to double its length. Final resistivity of the material will be

The capacity of a parallel plat capacitor depends on the

A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J

An alpha particle is accelerated through a potential difference of 106volt. Its kinetic energy will be

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

If the two charges in Coulomb's law have double distance between them, then electric force

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

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

Magnetic effect at a point caused due to flow a current depend upon the

Electric flux is defined by the relation

One joule is equal to

Consider a spherical shell of metal at he centre of which a positive point charge is kept

Cause of heat production in a current carrying conductor is

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

The earth's potential is taken as

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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

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

An alpha particle is accelerated through a potential difference of 10⁶volt. Its kinetic energy will be