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	The liquid which conduct current is known as	A. heating effect B. chemical energy C. electrolyte D. ohm's law
2	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
3	Consider a spherical shell of metal at he centre of which a positive point charge is kept	A. The electric filed is zero outside the shell B. The electric field is zero everywhere C. The electric field is zero in the region inside the shell D. The electric field is non-zero in both regions outside and inside the shell
4	The energy stored in a charge capacitor	A. 1/2CV² B. 1/2C²V C. 1/2C/V² D. None of these
5	The unit of resistance is	A. volt B. ampere C. ohm D. coat
6	A closed surface contains two equal and opposite charges. The net electric flux from the surface will be	A. Negative B. Positive C. Infinite D. Zero
7	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
8	Resistance of a conductor is increased, the currant will	A. Decrease B. Increase C. Remain the same D. None of these
9	A wire is bent into a ring of radius R is given a charge q. The magnitude of the electrical field at the centre of the ring is	A. Two B. 1/2 C. Zero D. 3/2
10	The charge per unit time through any cross-section of a conductor is called	A. capacitance B. electric power C. current D. potential difference

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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 SI unit of conductivity is

A charge of 0.1 c accelerated through a potential difference of 1000V acquires kinetic energy

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

The liquid which conduct current is known as

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

In a voltmeter the conduction takes place due to

The substances whose resistance decreases with the increase in temperature these substances have coefficient of

The ohm's is defined as

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

If an electron of charge 'e' is accelerated through a potential difference V., it will acquire energy

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

Two point charges A and B separated by a distance R attract each other with a force of 12 x 10-3N. The force between A and B when the charges on them are doubled and distance is halved

The minimum charge on any object can not be less than

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?

Solar cell converts sunlight directly into

The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is

The charge carriers in electrolyte are positive and negative

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 resistance of the given conductor can be increased by

The fractional change in resistance per kelvin is known as

What is the current is a 2 x 106ohm resistor having a potential difference of 2 x 103volts?

Physicist George Simon ohm was a

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

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

Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be

Consider a spherical shell of metal at he centre of which a positive point charge is kept

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

A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?

In a charged capacitor the energy is stored in

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ECAT Physics Chapter 12 Important MCQ's

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Two point charges A and B separated by a distance R attract each other with a force of 12 x 10^-3N. The force between A and B when the charges on them are doubled and distance is halved

What is the current is a 2 x 10⁶ohm resistor having a potential difference of 2 x 10³volts?