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	Resistance of a conductor is increased, the currant will	A. Decrease B. Increase C. Remain the same D. None of these
2	Three resistors of resistance 2,3 and 6 ohms are connected in parallel, their equivalent resistance is	A. 11.0 ohm B. 1.0 ohm C. 7.0 ohm D. 3.0 ohm
3	Electric flux is defined by the relation	A. E.A. B. E x A C. E/A D. none of these
4	The charge carriers in gases are	A. electrons B. ions C. protons D. ions and electrons
5	The SI unit of capacitance is	A. Farad B. Henry C. Ohm D. Volt
6	A charge Q is divided into two parts q and Q - q and separated by a distance R. The force of repulsion between them will be maximum when	A. q = Q/4 B. q = Q/2 C. q = ! D. None of these
7	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
8	The capacitance of a parallel plate capacitor depends upon	A. Area of the plates B. Separation between the plates C. Medium between the plates D. All of the above
9	A 100 W, 200 V bulb is connected to a 160 volts supply. The actual power consumption would be	A. 64 W B. 80 W C. 100 W D. 125 W
10	Ohm is the unit of	A. current B. capacitance C. energy D. resistance

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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

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

A certain charge liberates 0.8 g of oxygen. The same charge will liberate. how many g of silver?

At ordinary temperature, an increase in temperature increases the conductivity of

Thermocouple is an arrangement of two different metals

Electron volt is the unit of

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

The energy stored in a charge capacitor

The unit of intensity of electric field is

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

Coulomb's force between two point charges depends upon

A medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance

The SI unit of current is

The electric field intensity at a point due to a point charge

Ohm is the unit of

The unit of resistance is

Surface density of charge is defined as

One coulomb of charge is created by

For two resistance wires joined in parallel, the resultant resistance is 6/5 ohm. When one of the resistance wire breaks, the effective resistance becomes 2 ohm. The resistance of the broken wire is

Cause of heat production in a current carrying conductor is

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

A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is

The electric flux from a closed surface

The powers of tow electric bulbs are 100 W and 200 W. Both of them are joined with 220 V mains. The ratio of resistances of their filaments will be

Ohm's law states that

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

Equal charges are given to two spheres of different radii. The potential will

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The charge carriers in electrolyte are positive and negative

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ECAT Physics Chapter 12 Important MCQ's

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