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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Ch Ubaid Ullah 06 - Mar - 2026 17 Min 40 Sec 80/120
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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
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suzi 10 - Feb - 2026 08 Min 22 Sec 64/120

ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	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. Q/4πr² B. 2Q/4πr² C. Q.d D. Zero
2	Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?	A. 3RΩ B. 2R/4Ω C. R/3Ω D. 2R/3Ω
3	If one volt is needed to cause a current of one ampere to flow in a conductor, its resistance is	A. one ohm B. one joule C. one volt D. one ampere
4	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
5	A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor	A. Increases B. Decreases C. Remain unchanged D. Becomes infinite
6	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
7	The fractional change in resistance per kelvin is known as	A. temperature coefficient B. resistance coefficient C. super temperature D. critical temperature
8	Which of the following does not obey ohm's law?	A. Copper B. Al C. Diode D. None
9	The liquid which conduct current is known as	A. heating effect B. chemical energy C. electrolyte D. ohm's law
10	Surface density of charge is defined as	A. Charge per unit volume B. Charge per unit length C. Charge per unit area D. Charge per unit mass

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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

One electron volt is equal to

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

The earth's potential is taken as

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

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

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

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

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

One joule is equal to

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

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

The charge carriers in electrolyte are positive and negative

Force acting upon a charged particle kept between the plates of a charged condenser if F. IF one of the plates of the condenser is removed, force acting on the same will become

The value of electrical constant of proportionality k is

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

Ohm established a relation between

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

Electric generators which convert mechanical energy into

The fractional change in resistance per kelvin is known as

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

If the distance of separation between two chares is increased, the electrical potential energy of the system will

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

The unit of conductance is

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

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

The concept of field theory was put forward by

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

The unit of resistance is

The electric flux is linked with a surface will be maximum when

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ECAT Physics Chapter 12 Important MCQ's

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