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	In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes	A. Four-fold B. One-half C. One-fourth D. Zero
2	The SI unit of current is	A. watt B. coulomb C. volt D. ampere
3	The resistance of the given conductor can be increased by	A. Increasing the area B. Changing resistivity C. Decreasing the length D. None of the above because change does not matter because in any case the volume remains the same
4	Electron volt is the unit of	A. Potential difference B. Energy C. Resistance D. Capacitance
5	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
6	Solar cell converts sunlight directly into	A. potential energy B. thermal energy C. mechanical energy D. electrical energy
7	The statement "the electric force of repulsion or attraction between two point charges is directly proportional to the product of the charges and inversely proportional to square of the distance between them" refer to	A. Coulomb's law B. Gauss's law C. Biot-Sarwat law D. Ampere's law
8	The relation between the charge Q of a parallel plate capacitor and the P.D between its plates is	A. Q=V/C B. Q=C/V C. Q=1/2CV D. Q=CV
9	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. voltmeters B. resistance C. electrode D. current
10	The unit of resistivity is	A. ohm B. ohm-m² C. ohm-meter D. ohm-m^-1

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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

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

Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then

The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is

Surface density of charge is defined as

The relation V = IR represents

Some charge is being given to a conductor. Then its potential

If the length of the conductor is double and its cross sectional area is halved, its conductance will

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

The SI unit of electric flux is

The unit of resistivity is

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

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

The electrode connected with the positive terminal of the current source is called

Physicist George Simon ohm was a

If one volt is needed to cause a current of one ampere to flow in a conductor, its resistance is

The resistance of an incandescent lamp is

Capacitance of two or more capacitors

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

The SI unit of conductivity is

In a voltmeter the conduction takes place due to

Which one of the following is the unit of electric field intensity

The resistance of a conductor does not depend on its

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

Coulomb force, when any material medium is placed between two charges

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

Which of the following represents an electric current?

The resistance of the given conductor can be increased by

Ohm is the unit of

The minimum charge on any object can not be less than

The SI unit of current is

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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

Two electric bulbs of 200 W and 100 W have same voltage. If R₁and R₂be their resistance respectively then

The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10^-15is