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	When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to	A. One joule B. One erg C. One electron volt D. None of these
2	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
3	The relation between charge 'Q' and current 'I' is given by	A. Q = I/t B. Q = It C. Q = I²t D. Q = I²/t
4	Heating effect caused by an electric circuit is written	A. H = I²Rt B. H = I²R C. H = IR²t D. H = IR²
5	The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is	A. 4/5Ω B. 5/4Ω C. 20Ω D. 0.05 Ω
6	A medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance	A. Increase k time B. Decreases k times C. Decreases 1/K times D. Remains unchanged
7	Which of the following represents an electric current?	A. C^-1 B. CS^-1 C. J.S^-1 D. dynes^-1
8	Electric potential of earth is taken to be zero because the earth is good	A. Semiconductor B. Conductor C. Insulator D. Dielectric
9	A capacitor is charged with a battery and then it is disconnected. A slab of dielectric is now inserted between the plates, then	A. The charge in the plates reduces and potential difference increase B. Potential difference between the plates increase, stored energy decreases and charge remains the same C. Potential difference between the plates decreases and charge remains unchanged D. None of the above
10	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

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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

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 concept of field theory was put forward by

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

Current provided by a battery is maximum when

Two point charge +3μC and +8μC repel each other with a force of 40 N. If a charge of -5μC is added to each of them, then the force between then will become

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

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

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

The value of electrical constant of proportionality k is

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

Electric generators which convert mechanical energy into

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

Electric potential of earth is taken to be zero because the earth is good

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

Taking the earth to be a spherical conductor of diameter 12.8 x 103km. Its capacity will be

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

Ohm's law states that

One coulomb of charge is created by

The minimum charge on any object can not be less than

In bringing an electron towards another electron, electrostatic potential energy of system

Resistor is a device which convert electric energy to

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 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 heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?

A point charge A of charge +4μC and another B of charge -1μC are placed in air at a distance 1 m apart. Then the distance of the point on the line joining the charge B, where the resultant electric field is zero, is (in m)

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

If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be

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

A current of 1.6 A is passed through a solution of CuSO4. How many Cu2+ions are liberated in one minute?

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

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

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

Taking the earth to be a spherical conductor of diameter 12.8 x 10³km. Its capacity will be

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

A current of 1.6 A is passed through a solution of CuSO_{4. How many Cu}²⁺ions are liberated in one minute?