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 minimum charge on any object can not be less than	A. 1.6 x 10^-19C B. 3.2 x 10^-19C C. 1.0 C D. 4.8 x 10^-19C
2	The nature of capacity of electrostatic capacitor depends on	A. Shape B. Size C. Thickness of plates D. Area
3	The SI unit of electric field intensity is	A. CN^-1 B. NC^-1or Vm^-1 C. JC^-1 D. AV^-1
4	If the length of the conductor is double and its cross sectional area is halved, its conductance will	A. Increase four fold B. Become one-fourth C. Become one-half D. Remains unchanged
5	The electric intensity at infinite distance from the point charge will be	A. Infinite B. Positive C. Zero D. Negative
6	A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?	A. Electric potential at the surface of the cube is zero B. Electric potential within the cube is zero C. Electric filed is normal to the surface of the cube D. Electric filed varies within the cube
7	A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?	A. 200 W B. 302.5 C. 250 W D. 350 W
8	Magnetic effect at a point caused due to flow a current depend upon the	A. Quantity of current B. Distance from current C. Both the quantity of current and distance from current element D. None of the all
9	A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor	A. Increases B. Decreases C. Remain unchanged D. Becomes infinite
10	The unit of resistance is	A. volt B. ampere C. ohm D. coat

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

The graphical representation of ohm's law is

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

The charge per unit time through any cross-section of a conductor is called

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

Equal charges are given to two spheres of different radii. The potential will

The potential difference across the conductors should be maintained constant by connecting the ends of wire to the terminal of a device called a source of

The SI unit of electric flux is

The relation V = IR represents

The current through a metallic conductor is due to the motion of

If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be

The capacitance of a parallel plate capacitor depends upon

Thermocouple is an arrangement of two different metals

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

Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?

The capacity of a parallel plat capacitor depends on the

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

The unit of resistivity is

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

The energy stored in a charge capacitor

A 10 F capacitor is charged to a potential difference of 50 V and is connected to another uncharged capacitor in parallel. Now the common potential difference becomes 20 volt.The capacitance of second capacitor is

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

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

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

A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor

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

The charge carriers in gases are

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

An electric dipole is at the centre of a hollow sphere of radius r. The total normal electric flux through the sphere is (here Q is the charge and d is the distance between the two charges of the dipole)

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ECAT Physics Chapter 12 Important MCQ's

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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

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