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	Which one of the following is the unit of electric field intensity	A. JC^-1 B. Vm^-1 C. Cm^-1 D. CJ^-1
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	The unit of resistance is	A. volt B. ampere C. ohm D. coat
4	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
5	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
6	One coulomb per second is equal to	A. One volt B. One ampere C. One hom D. One henry
7	The SI unit of electric field intensity is	A. CN^-1 B. NC^-1or Vm^-1 C. JC^-1 D. AV^-1
8	A wire of radius r has resistance R. If it is stretched to a wire of r/2 radius, then the resistance becomes	A. 2R B. 4R C. 16R D. Zero
9	The ohm's is defined as	A. 1 ampere / 1 volts B. 1 coulomb / 1 volt C. 1 volt / 1 ampere D. 1 volt / 1 coulomb
10	Coulomb's force between two point charges depends upon	A. Magnitude of charges B. Distance between them C. Medium in which they are located D. All of the above

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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 100 W, 200 V bulb is connected to a 160 volts supply. The actual power consumption would be

The fractional change in resistance per kelvin is known as

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

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

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

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

Resistance of a conductor is increased, the currant will

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

The resistance of a conductor does not depend on its

The SI unit of capacitance is

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

The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is

Electron volt is the unit of

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

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

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

The unit of conductance is

A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is

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

In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes

The charge carriers in gases are

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 statement "the electric force of repulsion or attraction between two point charges is directly proportional to the product of the charges and inversely proportional to square of the distance between them" refer to

The SI unit of current is

The liquid which conduct current is known as

The conductivity of a superconductor is

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

The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is

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ECAT Physics Chapter 12 Important MCQ's

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

The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10^-15is

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