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	Specific resistance of a wire depends upon	A. Length B. Cross-section area C. Mass D. None
2	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
3	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
4	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. Zero B. F/2 C. F D. 2F
5	The SI unit of permitivity is	A. Nm²C² B. N^-1m^-2C² C. NmC² D. Nm²C^-1
6	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
7	The relation V = IR represents	A. Ampere law B. Faraday's law C. Ohm's law D. Len's law
8	Free electrons are	A. tightly bound B. fixed C. loosely bound D. tightly fixed
9	Which one of the following is the unit of electric field intensity	A. JC^-1 B. Vm^-1 C. Cm^-1 D. CJ^-1
10	Solar cell converts sunlight directly into	A. potential energy B. thermal energy C. mechanical energy D. electrical energy

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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 resistance is

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 electric lines of force are

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

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

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

If electric and gravitational force on an electron in a uniform electric field will be

The unit of conductance is

Resistance of a conductor depends upon

Capacitance of two or more capacitors

A car battery has e.m.f 12 volt and internal resistance 5 x 10-2ohm. If it draws 60 ampere current, the terminal voltage of the battery will be

The resistance of the given conductor can be increased by

The SI unit of permitivity is

Current provided by a battery is maximum when

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

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

The fractional change in resistance per kelvin is known as

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

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

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

Potentiometer is more sensitive than voltmeter, because

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

Electric flux is defined by the relation

The capacity of a parallel plat capacitor depends on the

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

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

The energy required to charge a capacitor of 5μF by connecting D.C. source of 20 KV is

The charge carriers in gases are

A piece of fuse wire melts when a current of 15 ampere flows through it. With this current. If it dissipates 22.5 W, the resistance of fuse wire will be

The conductivity of a superconductor 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

A car battery has e.m.f 12 volt and internal resistance 5 x 10^-2ohm. If it draws 60 ampere current, the terminal voltage of the battery will be