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	Physicist George Simon ohm was a	A. German physical B. French physicist C. Chinese physicist D. Russian physicist
2	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
3	Capacitance of two or more capacitors	A. Increases in series combination B. Increases in parallel combination C. Remains unchanged D. None of the above
4	The liquid which conduct current is known as	A. heating effect B. chemical energy C. electrolyte D. ohm's law
5	The energy required to charge a capacitor of 5μF by connecting D.C. source of 20 KV is	A. 10 KJ B. 5 KJ C. 2 KJ D. 1 KJ
6	The resistance of the given conductor can be increased by	A. Increasing the area B. Changing resistivity C. Decreasing the length D. None of the above because change does not matter because in any case the volume remains the same
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	Electric potential of earth is taken to be zero because the earth is good	A. Semiconductor B. Conductor C. Insulator D. Dielectric
9	The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart, with force of repulsion between the spheres to be 10^-19N, is	A. 25 B. 225 C. 625 D. 1250
10	The conventional current in a circuit is defined as " current which passes from a point at higher potential to a point at lower potential as if it represent a movement of	A. negative charges B. positive charges C. protons D. electrons

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

Capacitance of two or more capacitors

The conventional current in a circuit is defined as " current which passes from a point at higher potential to a point at lower potential as if it represent a movement of

Cause of heat production in a current carrying conductor is

The thermistors are usually made of

Potentiometer is more sensitive than voltmeter, because

The electric lines of force are

The unit of resistance is

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

The relation V = IR represents

One electron volt is equal to

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

Electric flux is defined by the relation

When three identical bulbs of 60 watt, 200 volt rating are connected in series to a 200 volt supply, the power drawn by them will be

If electric and gravitational force on an electron in a uniform electric field will be

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

The resistance of 20 cm long wire is 10Ω. When the length is changed to 40 cm. The new resistance is

Electron volt is the unit of.

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

The electric field will be uniform

A point charge Q is placed at the mid-point of a line joining two charges. 4q and q. if the net force on charge q is zero. then Q must be equal to

If the distance of separation between two chares is increased, the electrical potential energy of the system will

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

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

The electric flux from a closed surface

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?

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

The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart, with force of repulsion between the spheres to be 10-19N, is

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 SI unit of conductivity is

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ECAT Physics Chapter 12 Important MCQ's

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

The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart, with force of repulsion between the spheres to be 10^-19N, is

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