ECAT Pre General Science Chapter 12 online mcq test with answers for Physics chapter 12 (Electrostatics)

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ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	The ohm's is defined as	A. 1 ampere / 1 volts B. 1 coulomb / 1 volt C. 1 volt / 1 ampere D. 1 volt / 1 coulomb
2	The concept of field theory was put forward by	A. Franklin B. Kepler C. Oersted D. Michael Faraday
3	The resistivity of a substance depends upon the	A. length B. mass C. area D. temperature
4	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
5	The force of repulsion between two point charges is F, when these are at a distance 0.1 m apart. Now the point charges are replaced by sphere of radii 5 cm each having the same charge as that of the respective point charges. The distance between their centre is again kept 0.1 m ; then the force of repulsion will	A. Increase B. Decrease C. Remain F D. Become 10F/9
6	In a voltmeter the conduction takes place due to	A. Electrons only B. Holes only C. Electrons and holes D. Electrons and ions
7	The resistance of an incandescent lamp is	A. Smaller when switched on B. Greater when switched off C. The same whether it is switch off or switch on D. Greater when switched on
8	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	A. 5 volt B. 3 volt C. 15 volt D. 9 volt
9	Which one of the following has larger value of relative permitivity E_rat room temperature?	A. Vaccum B. Air C. Glass D. Water
10	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	A. -10 N B. +10 N C. +20 N D. -20 N

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ECAT Pre General Science Physics Chapter 12 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 12 Electrostatics

ECAT Pre General Science Physics Chapter 12 Electrostatics

The conductivity of a superconductor is

One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is

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

The charge carriers in electrolyte are positive and negative

Which of the following does not obey ohm's law?

If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be

The unit of resistance is

Current provided by a battery is maximum when

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

Solar cell converts sunlight directly into

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

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

The unit of resistivity is

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

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

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

The electric flux from a closed surface

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

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

The capacity of a parallel plat capacitor depends on the

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

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

The electric intensity at infinite distance from the point charge will be

One joule is equal to

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

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

In a voltmeter the conduction takes place due to

The resistance of an incandescent lamp is

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

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

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ECAT Physics Chapter 12 Important MCQ's

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

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

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