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	In a Milikian's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10^-19C. The number of excess electrons on the drop is	A. 3.9 B. 4 C. 4.2 D. 6
2	The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is	A. 21 x 10³+ 10% B. 23 x 10¹+ 10% C. 21 x 10³+ 5% D. 12 x 10³+ 5%
3	A 100 W, 200 V bulb is connected to a 160 volts supply. The actual power consumption would be	A. 64 W B. 80 W C. 100 W D. 125 W
4	An alpha particle is accelerated through a potential difference of 10⁶volt. Its kinetic energy will be	A. 1 MeV B. 2 MeV C. 4 MeV D. 8 MeV
5	A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J	A. 5 B. 0.5 C. 0.005 D. 50
6	The potential difference across each resistance in series combination is	A. same B. different C. zero D. none of these
7	At ordinary temperature, an increase in temperature increases the conductivity of	A. Conductor B. Semiconductor C. Insulator D. Alloy
8	If one volt is needed to cause a current of one ampere to flow in a conductor, its resistance is	A. one ohm B. one joule C. one volt D. one ampere
9	If the two charges in Coulomb's law have double distance between them, then electric force	A. Becomes two-fold B. Becomes four-fold C. Remains the same D. None of these
10	One coulomb per second is equal to	A. One volt B. One ampere C. One hom D. One henry

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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

Which one of the following is the unit of electric field intensity

Which of the following represents an electric current?

Surface density of charge is defined as

The resistivity of a substance depends upon the

Capacitance of two or more capacitors

Potentiometer is more sensitive than voltmeter, because

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

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

One joule is equal to

A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J

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

One electron volt is equal to

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

If the length of the conductor is double and its cross sectional area is halved, its conductance will

An alpha particle is accelerated through a potential difference of 106volt. Its kinetic energy will be

The dot product of electric field intensity E and vector area A is called

Which one of the following causes production of heat when current is set up in a wire?

In a Milikian's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10-19C. The number of excess electrons on the drop is

Physicist George Simon ohm was a

Ohm established a relation between

When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to

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

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

The value of electrical constant of proportionality k is

The minimum charge on any object can not be less than

The SI unit of electric field intensity is

One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is

Some charge is being given to a conductor. Then its potential

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

Ohm is the unit of

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An alpha particle is accelerated through a potential difference of 10⁶volt. Its kinetic energy will be

In a Milikian's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10^-19C. The number of excess electrons on the drop is