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	The charge carriers in electrolyte are positive and negative	A. protons B. electrons C. ions D. none of these
2	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
3	The material in the form of wire or rod or plate which leads the current into or cut of the electrolyte is known as	A. voltmeters B. resistance C. electrode D. current
4	A hollow insulated conduction sphere is given a positive charge of 10μC. What will be the electric field at the centre of the sphere if its radius is 2 meters?	A. Zero B. 5μC m^-2 C. 20μC m^-2 D. 8μC m^-2
5	The SI unit of capacitance is	A. Farad B. Henry C. Ohm D. Volt
6		A. 5μF B. 10μF C. 3μF D. 6μF
7	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
8	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%
9	Resistor is a device which convert electric energy to	A. Heat energy B. Chemical energy C. Elastic energy D. All of the above
10	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

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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

The SI unit of electric field intensity is

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

Resistance of a conductor depends upon

One coulomb per second is equal to

The value of electrical constant of proportionality k is

Electron volt is the unit of.

A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be

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

Physicist George Simon ohm was a

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

Specific resistance of a wire depends upon

The SI unit of current is

The nature of capacity of electrostatic capacitor depends on

One electron volt is equal to

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

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

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

Surface density of charge is defined as

Three resistors of resistance 2,3 and 6 ohms are connected in parallel, their equivalent resistance is

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

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

The potential difference across each resistance in series combination is

The force between two chares 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become

The speed of randomly moving electrons depends upon

The electric intensity outside the two oppositely charged parallel metal plates is

A one microfarad capacitor of a TV is subjected to 4000 V potential difference. The energy stored in capacitor is

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

The minimum charge on any object can not be less than

If we increase the distance between two plates of the capacitor, the capacitance will

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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ECAT Physics Chapter 12 Important MCQ's

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

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