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 thermistors are usually made of	A. Metals with low temperature coefficient of resistivity B. Metals with high temperature coefficient of resistivity C. Metal oxides with high temperature coefficient of resistivity D. Semi conducting materials having low temperature coefficient of resistivity
2	The electric intensity outside the two oppositely charged parallel metal plates is	A. Maximum B. Minimum C. Zero D. Infinite
3		A. 5μF B. 10μF C. 3μF D. 6μF
4	In a voltmeter the conduction takes place due to	A. Electrons only B. Holes only C. Electrons and holes D. Electrons and ions
5	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. 120 C B. 240 C C. 20 C D. 4 C
6	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	A. 1/3 V B. 2/3 V C. 3/2 V D. 3V
7	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
8	If an electron of charge 'e' is accelerated through a potential difference V., it will acquire energy	A. Ve B. V/e C. e/V D. 2Ve
9	The electric flux from a closed surface	A. Is independent of the shape of the surface B. Depends on the charge enclosed by the surface C. Both a and b D. None of the above
10	The dot product of electric field intensity E and vector area A is called	A. Electric potential B. Electric flux C. Electric field D. Magnetic field

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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

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

The liquid which conduct current is known as

The unit of conductance is

Solar cell converts sunlight directly into

The resistance of an incandescent lamp is

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

Coulomb force, when any material medium is placed between two charges

The ratio of the gravitational force Fgto the electrostatic force Febetween two electrons at the same distance apart is approximately

The SI unit of permitivity is

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

Electric flux is defined by the relation

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

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

Surface density of charge is defined as

Thermocouple is an arrangement of two different metals

The relation V = IR represents

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

One electron volt is equal to

Two conductors having the same type of charges are connected by a conducting wire. There would not be any amount of charges on them if

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

The electric field will be uniform

A conducting wire is drawn to double its length. Final resistivity of the material will be

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

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

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

If an electron of charge 'e' is accelerated through a potential difference V., it will acquire energy

Free electrons are

Electron volt is the unit of.

The SI unit of current is

If the two charges in Coulomb's law have double distance between them, then electric force

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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

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

The ratio of the gravitational force F_gto the electrostatic force F_ebetween two electrons at the same distance apart is approximately

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