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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Humera Noor 27 - Dec - 2024 19 Min 28 Sec 65/120

ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	The SI unit of electric field intensity is	A. CN^-1 B. NC^-1or Vm^-1 C. JC^-1 D. AV^-1
2	A charge of 0.1 c accelerated through a potential difference of 1000V acquires kinetic energy	A. 200 J B. 100 J C. 1000 J D. 400 J
3	Thermocouple is an arrangement of two different metals	A. To convert heat energy in to electrical energy B. To produce more heat C. To convert heat energy into chemical energy D. To convert electric energy in to heat energy
4	Electric potential of earth is taken to be zero because the earth is good	A. Semiconductor B. Conductor C. Insulator D. Dielectric
5	A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?	A. 200 W B. 302.5 C. 250 W D. 350 W
6	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
7	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
8	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	A. They have the same potential B. They have the same amount of charge C. They have the same capacity D. They have the same shape
9	Capacitance of two or more capacitors	A. Increases in series combination B. Increases in parallel combination C. Remains unchanged D. None of the above
10	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

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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 potential difference across each resistance in series combination is

One joule is equal to

Resistor is a device which convert electric energy to

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

The unit of resistivity is

The material in the form of wire or rod or plate which leads the current into or cut of the electrolyte is known as

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

Surface density of charge is defined as

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)

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

Which one of the following has larger value of relative permitivity Erat room temperature?

The capacity of a parallel plat capacitor depends on the

Physicist George Simon ohm was a

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

The electric intensity outside the two oppositely charged parallel metal plates is

A hollow insulated conduction sphere is given a positive charge of 10μC. What will be the electric field at the centre of the sphere if its radius is 2 meters?

A one microfarad capacitor of a TV is subjected to 4000 V potential difference. The energy stored in capacitor is

The energy stored in a charge capacitor

Battery is charged in motor cars, which is based on

The speed of randomly moving electrons depends upon

The SI unit of permitivity is

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

A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is

Free electrons are

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

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

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?

The SI unit of current is

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 resistance of an incandescent lamp is

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ECAT Physics Chapter 12 Important MCQ's

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Which one of the following has larger value of relative permitivity E_rat room temperature?