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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ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	A point charge Q is placed at the mid-point of a line joining two charges. 4q and q. if the net force on charge q is zero. then Q must be equal to	A. -q B. +q C. -2q D. +4q
2	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
3	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	A. They have the same potential B. They have the same amount of charge C. They have the same capacity D. They have the same shape
4	Resistance of a conductor is increased, the currant will	A. Decrease B. Increase C. Remain the same D. None of these
5	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	A. 0.1 watt B. 1 watt C. 10 watt D. 100 watt
6	Some charge is being given to a conductor. Then its potential	A. Is maximum at surface B. Is maximum at centre C. Is remain same throughout the conductor D. Is maximum somewhere between surface and centre
7	The unit of intensity of electric field is	A. newton/coluomb B. jule/coluomb C. volt x metre D. newton/metre
8	The material in the form of wire or rod or plate which leads the current into or cut of the electrolyte is known as	A. voltmeters B. resistance C. electrode D. current
9	One joule is equal to	A. 1.6 x 10¹⁹eV B. 6.25 x 10¹⁸eV C. 1.6 x 18¹⁸eV D. 6.25 x 10¹⁹eV
10	The earth's potential is taken as	A. Negative B. Positive C. Zero D. Infinite

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

A wire of radius r has resistance R. If it is stretched to a wire of r/2 radius, then the resistance becomes

In bringing an electron towards another electron, electrostatic potential energy of system

The substances whose resistance decreases with the increase in temperature these substances have coefficient of

The value of electrical constant of proportionality k is

A certain charge liberates 0.8 g of oxygen. The same charge will liberate. how many g of silver?

A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor

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

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

The resistivity of a substance depends upon the

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

Calculate the amount of charge flowing in 2 minutes in a wire of resistance 10Ωwhen a potential difference of 20 V is applied between its ends

In a charged capacitor the energy is stored in

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

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

The resistance of an incandescent lamp is

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

The unit of conductance is

Resistor is a device which convert electric energy to

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)

The SI unit of current is

A closed surface contains two equal and opposite charges. The net electric flux from the surface will be

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

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

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

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

Which of the following does not obey ohm's law?

A point charge Q is placed at the mid-point of a line joining two charges. 4q and q. if the net force on charge q is zero. then Q must be equal to

Cause of heat production in a current carrying conductor is

Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be

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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?

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