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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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	The minimum charge on any object can not be less than	A. 1.6 x 10^-19C B. 3.2 x 10^-19C C. 1.0 C D. 4.8 x 10^-19C
2	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
3	A conducting wire is drawn to double its length. Final resistivity of the material will be	A. Double of the original one B. Half of the original one C. One fourth of the original one D. Same as original one
4	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
5	The dot product of electric field intensity E and vector area A is called	A. Electric potential B. Electric flux C. Electric field D. Magnetic field
6	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
7	The SI unit of permitivity is	A. Nm²C² B. N^-1m^-2C² C. NmC² D. Nm²C^-1
8	A certain charge liberates 0.8 g of oxygen. The same charge will liberate. how many g of silver?	A. 108 g B. 10.8 g C. 0.8 g D. 108/0.8 g
9	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
10	Which one of the following is the unit of electric field intensity	A. JC^-1 B. Vm^-1 C. Cm^-1 D. CJ^-1

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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 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

Ohm's law states that

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 SI unit of electric flux is

One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is

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

The relation V = IR represents

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

If a charged spherical conductor of radius 10 cm has potential V at a point distance 5 cm from its centre, then the potential at a point distance 15 cm from the centre will be

The electrode connected with the positive terminal of the current source is called

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

106electrons are moving through a wire per second, the current developed is

The potential difference across each resistance in series combination is

If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be

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

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

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 electric flux is linked with a surface will be maximum when

Surface density of charge is defined as

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

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

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

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

Solar cell converts sunlight directly into

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

The conductivity of a superconductor is

A 100 W, 200 V bulb is connected to a 160 volts supply. The actual power consumption would be

The charge carriers in gases are

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

A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is

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

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

10⁶electrons are moving through a wire per second, the current developed is