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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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 unit of conductance is	A. ohm B. meter C. mho D. ohm-meter
2	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?	A. 60 W bulb B. 100 W bulb C. Both equally D. None of these
3	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)	A. 2 B. 1 C. 0.5 D. 1.5
4	Ohm established a relation between	A. voltage and resistance B. voltage and charge C. voltage and current D. voltage resistance and charge
5	The resistance of an incandescent lamp is	A. Smaller when switched on B. Greater when switched off C. The same whether it is switch off or switch on D. Greater when switched on
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 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
8	The relation between the charge Q of a parallel plate capacitor and the P.D between its plates is	A. Q=V/C B. Q=C/V C. Q=1/2CV D. Q=CV
9	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
10	If electric and gravitational force on an electron in a uniform electric field will be	A. E=mg/q B. E=q/mg C. E=,g/q D. E=qg/m

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

The earth's potential is taken as

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

A charge of 0.1 c accelerated through a potential difference of 1000V acquires kinetic energy

In a charged capacitor the energy is stored in

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

If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be

The charge carriers in electrolyte are positive and negative

One electron volt is equal to

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

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 medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance

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

Ohm established a relation between

The resistivity of a substance depends upon the

The electric field will be uniform

The capacitance of a parallel plate capacitor depends upon

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

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

The liquid which conduct current is known as

Resistance of a conductor is increased, the currant will

The unit of conductance is

Specific resistance of a wire depends upon

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

In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes

The electric lines of force are

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

The concept of field theory was put forward by

A wire is bent into a ring of radius R is given a charge q. The magnitude of the electrical field at the centre of the ring is

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

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ECAT Physics Chapter 12 Important MCQ's

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