ECAT Pre Engineering Physics Chapter 12 MCQ Test With Answer

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ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is	A. Zero B. 0.5Ω C. 1.1Ω D. 5.0Ω
2	If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be	A. 5μF B. 20μF C. 10μF D. 15μF
3	If we increase the distance between two plates of the capacitor, the capacitance will	A. Increase B. Decrease C. Remain same D. First increase then decrease
4	The electrode connected with the positive terminal of the current source is called	A. cathode B. anode C. electrolyte D. position
5	An electric charge at rest is	A. Only an electric field B. Only a magnetic field C. Both electric and magnetic fields D. None of the above
6	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
7	The capacitance of a parallel plate capacitor depends upon	A. Area of the plates B. Separation between the plates C. Medium between the plates D. All of the above
8	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
9	The SI unit of electric field intensity is	A. CN^-1 B. NC^-1or Vm^-1 C. JC^-1 D. AV^-1
10	When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to	A. One joule B. One erg C. One electron volt D. None of these

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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

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

Ohm is the unit of

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

Physicist George Simon ohm was a

Electric potential of earth is taken to be zero because the earth is good

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

Equal charges are given to two spheres of different radii. The potential will

The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is

If 2.2 kilowatt power is transmitted through 1 10 ohm line at 22000 volt, the power loss in the form of heat will be

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

One coulomb of charge is created by

The capacity of a parallel plat capacitor depends on the

The SI unit of conductivity is

The speed of randomly moving electrons depends upon

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

At any point on the right bisector of the line joining two equal and opposite charges

Battery is charged in motor cars, which is based on

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

Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?

Ohm established a relation between

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

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 ohm's is defined as

Capacitance of two or more capacitors

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

Resistor is a device which convert electric energy to

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

The charge per unit time through any cross-section of a conductor is called

The relation V = IR represents

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

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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