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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Nitalaya Hassan 23 - Dec - 2024 06 Min 15 Sec 80/120
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Talha Khalil 18 - Jun - 2026 10 Min 55 Sec 80/120
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Fatima Anis 26 - Dec - 2024 13 Min 35 Sec 80/120
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Abdullah Zubair 25 - Dec - 2024 14 Min 30 Sec 80/120
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Ch Ubaid Ullah 06 - Mar - 2026 17 Min 40 Sec 80/120
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Ahmad Sufyan 05 - May - 2026 18 Min 20 Sec 80/120
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Hanook Masih 25 - Sep - 2024 12 Min 15 Sec 75/120
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Furqan Asif 26 - Mar - 2026 36 Min 02 Sec 72/120
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usman gujjar 02 - Dec - 2024 07 Min 03 Sec 70/120
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Taha 18 - Mar - 2026 17 Min 17 Sec 68/120
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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	What is the current is a 2 x 10⁶ohm resistor having a potential difference of 2 x 10³volts?	A. 10^-1A B. 10^-2A C. 10^-4A D. 1 mA
2	The energy stored in a charge capacitor	A. 1/2CV² B. 1/2C²V C. 1/2C/V² D. None of these
3	In a Milikian's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10^-19C. The number of excess electrons on the drop is	A. 3.9 B. 4 C. 4.2 D. 6
4	The SI unit of electric field intensity is	A. CN^-1 B. NC^-1or Vm^-1 C. JC^-1 D. AV^-1
5	At any point on the right bisector of the line joining two equal and opposite charges	A. At electric field is zero B. The electric potential is zero C. The electric potential decreases with increasing distance from the centre D. The electric field is perpendicular to the line joining the charges
6	Consider a spherical shell of metal at he centre of which a positive point charge is kept	A. The electric filed is zero outside the shell B. The electric field is zero everywhere C. The electric field is zero in the region inside the shell D. The electric field is non-zero in both regions outside and inside the shell
7	If the two charges in Coulomb's law have double distance between them, then electric force	A. Becomes two-fold B. Becomes four-fold C. Remains the same D. None of these
8	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
9	The electrode connected with the positive terminal of the current source is called	A. cathode B. anode C. electrolyte D. position
10	In a voltmeter the conduction takes place due to	A. Electrons only B. Holes only C. Electrons and holes D. Electrons and ions

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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 one volt is needed to cause a current of one ampere to flow in a conductor, its resistance is

The unit of resistance is

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

The SI unit of electric flux is

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

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

If an electron of charge 'e' is accelerated through a potential difference V., it will acquire energy

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

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

The resistance of a conductor does not depend on its

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

Free electrons are

The speed of randomly moving electrons depends upon

If the length of the conductor is double and its cross sectional area is halved, its conductance will

The charge carriers in electrolyte are positive and negative

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

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 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)

Resistance of a conductor depends upon

Ohm established a relation between

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

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

The resistance of 20 cm long wire is 10Ω. When the length is changed to 40 cm. The new resistance is

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

When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to

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

The electric lines of force are

The electric flux from a closed surface

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

The concept of field theory was put forward by

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