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	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	A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J	A. 5 B. 0.5 C. 0.005 D. 50
3	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)	A. 2 B. 1 C. 0.5 D. 1.5
4	The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10^-15is	A. 9 x 10⁵V B. 9 V C. 8 x 10⁶V D. 80 V
5	A 60 W bulb operates on 220 V supply. The current flowing through the bulb is	A. 11/3 A B. 3 A C. 3/11 A D. 6
6	One electron volt is equal to	A. 1.6 x 1019eV B. 6.25 x 1018 eV C. 1.6 x 1018 eV D. 6.25 x 1019eV
7	A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is	A. C B. C/2 C. Zero D. 2C
8	The graphical representation of ohm's law is	A. hyperbola B. straight line C. ellipse D. parabola
9	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
10	The electric field intensity at a point due to a point charge	A. Falls off inversely as the distance B. Falls off inversely as the square of distance C. Remains unchanged with distance D. Increase directly as square of distance

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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 unit of resistivity is

The unit of intensity of electric field is

The resistivity of a substance depends upon the

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

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

The electric flux from a closed surface

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

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

The SI unit of capacitance is

The SI unit of conductivity is

A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is

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

Which of the following represents an electric current?

The unit of resistance 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?

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

Specific resistance of a wire depends upon

Resistance of a conductor is increased, the currant will

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 closed surface contains two equal and opposite charges. The net electric flux from the surface will be

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

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

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?

Resistor is a device which convert electric energy to

The liquid which conduct current is known as

If a 40 watt light bulb burns for 2 hours. how much heat is generated

Which of the following does not obey ohm's law?

The electric field intensity at a point due to a point charge

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

One coulomb of charge is created by

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