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	The unit of intensity of electric field is	A. newton/coluomb B. jule/coluomb C. volt x metre D. newton/metre
3	If a 40 watt light bulb burns for 2 hours. how much heat is generated	A. 288 x 10³J B. 288 x 10⁸J C. 288 x 10⁵J D. 288 x 10⁶J
4	Two point charge +3μC and +8μC repel each other with a force of 40 N. If a charge of -5μC is added to each of them, then the force between then will become	A. -10 N B. +10 N C. +20 N D. -20 N
5	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	A. 1.92 N B. 19.2 N C. 12 N D. 0.192 N
6	Three resistors of resistance 2,3 and 6 ohms are connected in parallel, their equivalent resistance is	A. 11.0 ohm B. 1.0 ohm C. 7.0 ohm D. 3.0 ohm
7	The graphical representation of ohm's law is	A. hyperbola B. straight line C. ellipse D. parabola
8	Battery is charged in motor cars, which is based on	A. Chemical effect B. Magnetic effect C. Electric effect D. None
9	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	A. -q B. +q C. -2q D. +4q
10	One joule is equal to	A. 1.6 x 10¹⁹eV B. 6.25 x 10¹⁸eV C. 1.6 x 18¹⁸eV D. 6.25 x 10¹⁹eV

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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 unit of resistivity is

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

The SI unit of electric field intensity is

The unit of resistance is

One electron volt is equal to

Resistance of a conductor is increased, the currant will

If an electron of charge 'e' is accelerated through a potential difference V., it will acquire energy

Resistance of a conductor depends upon

The unit of conductance is

Three resistors of resistance 2,3 and 6 ohms are connected in parallel, their equivalent resistance is

The graphical representation of ohm's law is

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

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

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

The earth's potential is taken as

The value of electrical constant of proportionality k is

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

Electric generators which convert mechanical energy into

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

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 electric intensity outside the two oppositely charged parallel metal plates is

Physicist George Simon ohm was a

If a 40 watt light bulb burns for 2 hours. how much heat is generated

The electric intensity at infinite distance from the point charge will be

The potential difference across each resistance in series combination is

A conducting wire is drawn to double its length. Final resistivity of the material will be

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

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

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

The SI unit of electric flux is

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ECAT Physics Chapter 12 Important MCQ's

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