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	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
2	The SI unit of permitivity is	A. Nm²C² B. N^-1m^-2C² C. NmC² D. Nm²C^-1
3	Electric flux is defined by the relation	A. E.A. B. E x A C. E/A D. none of these
4	The unit of resistance is	A. volt B. ampere C. ohm D. coat
5	The electric intensity at infinite distance from the point charge will be	A. Infinite B. Positive C. Zero D. Negative
6	The speed of randomly moving electrons depends upon	A. pressure B. volume C. temperature D. mass
7	Ohm is the unit of	A. current B. capacitance C. energy D. resistance
8	The relation V = IR represents	A. Ampere law B. Faraday's law C. Ohm's law D. Len's law
9	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
10	The current through a metallic conductor is due to the motion of	A. protons B. neutrons C. electrons D. free electrons

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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

If a charged spherical conductor of radius 10 cm has potential V at a point distance 5 cm from its centre, then the potential at a point distance 15 cm from the centre will be

Free electrons are

An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be

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

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

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

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

The charge per unit time through any cross-section of a conductor is called

The resistivity of a substance depends upon the

Resistance of a conductor depends upon

The minimum charge on any object can not be less than

The unit of conductance is

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

The earth's potential is taken as

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

The unit of intensity of electric field is

The ohm's is defined as

The SI unit of electric field intensity is

The resistance of a conductor does not depend on its

Resistor is a device which convert electric energy to

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

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

One joule is equal to

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

Specific resistance of a wire depends upon

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

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

Physicist George Simon ohm was a

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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

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