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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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
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Zaka Ullah 09 - Nov - 2024 07 Min 20 Sec 60/120
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Abdulrehman Haroon 26 - Sep - 2024 28 Min 20 Sec 60/120
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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

ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	Which of the following does not obey ohm's law?	A. Copper B. Al C. Diode D. None
2	Capacitance of two or more capacitors	A. Increases in series combination B. Increases in parallel combination C. Remains unchanged D. None of the above
3	The electric flux from a closed surface	A. Is independent of the shape of the surface B. Depends on the charge enclosed by the surface C. Both a and b D. None of the above
4	The concept of field theory was put forward by	A. Franklin B. Kepler C. Oersted D. Michael Faraday
5	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
6	If the length of the conductor is double and its cross sectional area is halved, its conductance will	A. Increase four fold B. Become one-fourth C. Become one-half D. Remains unchanged
7	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
8	A capacitor is charged with a battery and then it is disconnected. A slab of dielectric is now inserted between the plates, then	A. The charge in the plates reduces and potential difference increase B. Potential difference between the plates increase, stored energy decreases and charge remains the same C. Potential difference between the plates decreases and charge remains unchanged D. None of the above
9	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
10	For two resistance wires joined in parallel, the resultant resistance is 6/5 ohm. When one of the resistance wire breaks, the effective resistance becomes 2 ohm. The resistance of the broken wire is	A. 3/5 ohm B. 2 ohm C. 6/5 ohm D. 3 ohm

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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

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

In RC series circuit the time during which the capacitor acquires 0.63 times the equilibrium charge is called

Ohm's law states that

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

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

One electron volt is equal to

The electric intensity at infinite distance from the point charge will be

Battery is charged in motor cars, which is based on

Thermocouple is an arrangement of two different metals

The speed of randomly moving electrons depends upon

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 field will be uniform

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

A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?

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

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

Resistance of a conductor depends upon

The force between two chares 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become

The ohm's is defined as

Two point charge +3μC and +8μC repel each other with a force of 40 N. If a charge of -5μC is added to each of them, then the force between then will become

The relation between the charge Q of a parallel plate capacitor and the P.D between its plates is

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

Magnetic effect at a point caused due to flow a current depend upon the

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

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

The capacity of a parallel plat capacitor depends on the

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

The resistance of the given conductor can be increased by

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

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)

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ECAT Physics Chapter 12 Important MCQ's

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