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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Mehpara Khatoon 07 - Aug - 2024 24 Min 16 Sec 55/120

ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	Which of the following does not obey ohm's law?	A. Copper B. Al C. Diode D. None
2	The resistance of a conductor does not depend on its	A. mass B. resistivity C. length D. cross-sectional area
3	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
4	One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is	A. 0.1 V B. 8 V C. 2 V D. 0.5 V
5	If the distance of separation between two chares is increased, the electrical potential energy of the system will	A. Increase B. Decrease C. May increase or decrease D. Remain the same
6	A (100 W , 200 W) bulb is connected to a 160 V power supply. The power consumption would be	A. 64 W B. 80 W C. 100 W D. 125 W
7	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
8	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
9	In Pakistan electricity is supplied for domestic use at 220 V, it is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in Pakistan is R, the resistance of a 60 W bulb for use in USA will be	A. 2 R B. R/4 C. R/2 D. R
10	Electric flux is defined by the relation	A. E.A. B. E x A C. E/A D. none of these

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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

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?

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

The electric field intensity at a point due to a point charge

The conventional current in a circuit is defined as " current which passes from a point at higher potential to a point at lower potential as if it represent a movement of

Which one of the following has larger value of relative permitivity Erat room temperature?

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

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

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)

If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be

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

Resistance of a conductor depends upon

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 SI unit of permitivity is

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

Coulomb's force between two point charges depends upon

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

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

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

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 60 W bulb operates on 220 V supply. The current flowing through the bulb is

The SI unit of current 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

The electric field will be uniform

One joule is equal to

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

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

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

The electric intensity at infinite distance from the point charge will be

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

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?

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ECAT Physics Chapter 12 Important MCQ's

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Which one of the following has larger value of relative permitivity E_rat room temperature?

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

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