ECAT Pre Engineering Physics Chapter 12 MCQ Test With Answer

Top Scorers Of Physics ECAT Pre Engineering Chapter 12 Electrostatics MCQ`s Test

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ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	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?	A. 60 W bulb B. 100 W bulb C. Both equally D. None of these
2	The SI unit of conductivity is	A. ohm-m B. ohm^-1m^-1 C. ohm-m^-1 D. ohm^-1m
3	The conventional current in a circuit is defined as " current which passes from a point at higher potential to a point at lower potential as if it represent a movement of	A. negative charges B. positive charges C. protons D. electrons
4	Which one of the following has larger value of relative permitivity E_rat room temperature?	A. Vaccum B. Air C. Glass D. Water
5	When three identical bulbs of 60 watt, 200 volt rating are connected in series to a 200 volt supply, the power drawn by them will be	A. 180 watt B. 10 watt C. 20 watt D. 60 watt
6	Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be	A. 0.52 A B. 1 mA C. 0.7 mA D. 1.4 A
7	Free electrons are	A. tightly bound B. fixed C. loosely bound D. tightly fixed
8	The unit of resistance is	A. volt B. ampere C. ohm D. coat
9	The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is	A. 21 x 10³+ 10% B. 23 x 10¹+ 10% C. 21 x 10³+ 5% D. 12 x 10³+ 5%
10	Some charge is being given to a conductor. Then its potential	A. Is maximum at surface B. Is maximum at centre C. Is remain same throughout the conductor D. Is maximum somewhere between surface and centre

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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

Electric flux is defined by the relation

A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J

Calculate the amount of charge flowing in 2 minutes in a wire of resistance 10Ωwhen a potential difference of 20 V is applied between its ends

A point charge Q is placed at the mid-point of a line joining two charges. 4q and q. if the net force on charge q is zero. then Q must be equal to

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

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

The unit of conductance is

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

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

If the distance of separation between two chares is increased, the electrical potential energy of the system will

A wire of radius r has resistance R. If it is stretched to a wire of r/2 radius, then the resistance becomes

A condenser of capacity 50μF is charged to 10 V.The energy stored is

The electric field due to an infinite long thin wire at a distance R varies as

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

Current provided by a battery is maximum when

Battery is charged in motor cars, which is based on

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

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

In RC series circuit the time during which the capacitor acquires 0.63 times the equilibrium charge is called

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

Coulomb's force between two point charges depends upon

Electron volt is the unit of

The graphical representation of ohm's law is

A uniform resistance wire of Length L and diameter d has a resistance R. Another wire of same material has length, 4L and diameter 2d, the resistance will be

The relation between charge 'Q' and current 'I' is given by

The capacitance of a parallel plate capacitor depends upon

The concept of field theory was put forward by

Physicist George Simon ohm was a

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 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

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ECAT Physics Chapter 12 Important MCQ's

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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