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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Hanook Masih 25 - Sep - 2024 12 Min 15 Sec 75/120
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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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Zaka Ullah 09 - Nov - 2024 07 Min 20 Sec 60/120
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Abdulrehman Haroon 26 - Sep - 2024 28 Min 20 Sec 60/120
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123 Abcd 07 - Nov - 2024 12 Min 46 Sec 55/120
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Abdul rafay Malghani 02 - Dec - 2024 14 Min 25 Sec 55/120
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Mehpara Khatoon 07 - Aug - 2024 24 Min 16 Sec 55/120

ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	Two point charge +3μC and +8μC repel each other with a force of 40 N. If a charge of -5μC is added to each of them, then the force between then will become	A. -10 N B. +10 N C. +20 N D. -20 N
2	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
3	When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to	A. One joule B. One erg C. One electron volt D. None of these
4	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
5	In a charged capacitor the energy is stored in	A. Both in positive and negative charges B. Positive charges C. The edges of the capacitor plates D. The electric field between the plates
6	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
7	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)	A. Q/4πr² B. 2Q/4πr² C. Q.d D. Zero
8	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
9	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	A. 10μF B. 20μF C. 30μF D. 15μF
10	The electric flux is linked with a surface will be maximum when	A. The surface is held parallel to the electric field B. The surface is held perpendicular to the electric field C. The surface makes an angle of 45° with the electric field D. All of the above

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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

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

A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is

A current of 1.6 A is passed through a solution of CuSO4. How many Cu2+ions are liberated in one minute?

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

Resistance of a conductor is increased, the currant will

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

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

The powers of tow electric bulbs are 100 W and 200 W. Both of them are joined with 220 V mains. The ratio of resistances of their filaments will be

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

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

A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?

Three resistors of resistance 2,3 and 6 ohms are connected in parallel, their equivalent resistance is

The energy required to charge a capacitor of 5μF by connecting D.C. source of 20 KV is

Two conductors having the same type of charges are connected by a conducting wire. There would not be any amount of charges on them if

Physicist George Simon ohm was a

The potential difference across each resistance in series combination is

The resistivity of a substance depends upon the

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

One electron volt is equal to

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

The ratio of the gravitational force Fgto the electrostatic force Febetween two electrons at the same distance apart is approximately

The graphical representation of ohm's law is

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

Electric generators which convert mechanical energy into

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

If two bulbs one of 60 W and other of 100 W are connected in parallel, then which one of the following will flow more?

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

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

Specific resistance of a wire depends upon

Current provided by a battery is maximum when

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ECAT Physics Chapter 12 Important MCQ's

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A current of 1.6 A is passed through a solution of CuSO_{4. How many Cu}²⁺ions are liberated in one minute?

The ratio of the gravitational force F_gto the electrostatic force F_ebetween two electrons at the same distance apart is approximately

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