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 energy stored in a charge capacitor	A. 1/2CV² B. 1/2C²V C. 1/2C/V² D. None of these
2	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?	A. 60 W bulb B. 100 W bulb C. Both equally D. None of these
3	The SI unit of current is	A. watt B. coulomb C. volt D. ampere
4	The electric flux is linked with a surface will be maximum when	A. The surface is held parallel to the electric field B. The surface is held perpendicular to the electric field C. The surface makes an angle of 45° with the electric field D. All of the above
5	The resistance of a conductor does not depend on its	A. mass B. resistivity C. length D. cross-sectional area
6	The earth's potential is taken as	A. Negative B. Positive C. Zero D. Infinite
7	The SI unit of electric field intensity is	A. CN^-1 B. NC^-1or Vm^-1 C. JC^-1 D. AV^-1
8	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
9	Taking the earth to be a spherical conductor of diameter 12.8 x 10³km. Its capacity will be	A. 711μF B. 611μF C. 811μF D. 511μF
10	One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is	A. 0.1 V B. 8 V C. 2 V D. 0.5 V

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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

The speed of randomly moving electrons depends upon

The charge carriers in electrolyte are positive and negative

The concept of field theory was put forward by

The electric lines of force are

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

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

Physicist George Simon ohm was a

One coulomb of charge is created by

Electric flux is defined by the relation

The nature of capacity of electrostatic capacitor depends on

The energy stored in a charge capacitor

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 electric field intensity at a point due to a point charge

If we plot graph between potential difference (V) and current (I) obeying ohm's law, it will give us

The SI unit of permitivity is

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

The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is

Which of the following does not obey ohm's law?

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

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

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

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

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

A capacitor is charged with a battery and then it is disconnected. A slab of dielectric is now inserted between the plates, then

A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is

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

For two resistance wires joined in parallel, the resultant resistance is 6/5 ohm. When one of the resistance wire breaks, the effective resistance becomes 2 ohm. The resistance of the broken wire is

Which one of the following has larger value of relative permitivity Erat room temperature?

A uniform resistance wire of Length L and diameter d has a resistance R. Another wire of same material has length, 4L and diameter 2d, the resistance will be

The ratio of the gravitational force Fgto the electrostatic force Febetween two electrons at the same distance apart is approximately

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ECAT Physics Chapter 12 Important MCQ's

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Which one of the following has larger value of relative permitivity E_rat room temperature?

The ratio of the gravitational force F_gto the electrostatic force F_ebetween two electrons at the same distance apart is approximately