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 electric lines of force are	A. Imaginary B. Physically existing everywhere C. Physically existing near the charge D. All of the above
2	The unit of resistivity is	A. ohm B. ohm-m² C. ohm-meter D. ohm-m^-1
3	The electric intensity outside the two oppositely charged parallel metal plates is	A. Maximum B. Minimum C. Zero D. Infinite
4	The electric field due to an infinite long thin wire at a distance R varies as	A. 1/R B. 1/R² C. R D. R²
5	Force acting upon a charged particle kept between the plates of a charged condenser if F. IF one of the plates of the condenser is removed, force acting on the same will become	A. Zero B. F/2 C. F D. 2F
6	Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?	A. 3RΩ B. 2R/4Ω C. R/3Ω D. 2R/3Ω
7	If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be	A. 6 ohm B. 4 ohm C. zero ohm D. 1.33 ohm
8	The electric field will be uniform	A. Near a positive point charge B. Near a negative point charge C. Between two oppositely charged parallel metal plates D. None of above
9	A point charge A of charge +4μC and another B of charge -1μC are placed in air at a distance 1 m apart. Then the distance of the point on the line joining the charge B, where the resultant electric field is zero, is (in m)	A. 2 B. 1 C. 0.5 D. 1.5
10	At any point on the right bisector of the line joining two equal and opposite charges	A. At electric field is zero B. The electric potential is zero C. The electric potential decreases with increasing distance from the centre D. The electric field is perpendicular to the line joining the charges

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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

Current provided by a battery is maximum when

Free electrons are

The concept of field theory was put forward by

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

A condenser of capacity 50μF is charged to 10 V.The energy stored is

Specific resistance of a wire depends upon

The minimum charge on any object can not be less than

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

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

The charge carriers in gases are

The capacity of a parallel plat capacitor depends on the

In a voltmeter the conduction takes place due to

Which of the following represents an electric current?

A ten ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts

The SI unit of electric field intensity is

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

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

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

The liquid which conduct current is known as

At ordinary temperature, an increase in temperature increases the conductivity of

The SI unit of current is

A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?

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

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

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

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 nature of capacity of electrostatic capacitor depends on

The ohm's is defined as

The energy stored in a charge capacitor

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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