ECAT Pre Computer Science Chapter 12 MCQ Test With Answer

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ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	Which of the following does not obey ohm's law?	A. Copper B. Al C. Diode D. None
2	A 10 F capacitor is charged to a potential difference of 50 V and is connected to another uncharged capacitor in parallel. Now the common potential difference becomes 20 volt.The capacitance of second capacitor is	A. 10μF B. 20μF C. 30μF D. 15μF
3	A certain charge liberates 0.8 g of oxygen. The same charge will liberate. how many g of silver?	A. 108 g B. 10.8 g C. 0.8 g D. 108/0.8 g
4	A current of 1.6 A is passed through a solution of CuSO_{4. How many Cu}²⁺ions are liberated in one minute?	A. 3 x 10²⁰ B. 3 x 10¹⁰ C. 6 x 10²⁰ D. 6 x 10¹⁰
5	A 60 W bulb operates on 220 V supply. The current flowing through the bulb is	A. 11/3 A B. 3 A C. 3/11 A D. 6
6	Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be	A. 0.52 A B. 1 mA C. 0.7 mA D. 1.4 A
7		A. 5μF B. 10μF C. 3μF D. 6μF
8	The substances whose resistance decreases with the increase in temperature these substances have coefficient of	A. positive temperature B. negative temperature C. absolute temperature D. zero temperature
9	10⁶electrons are moving through a wire per second, the current developed is	A. 1.6 x 10^-19 B. 1 A C. 1.6 x 10^-15A D. 10⁶A
10	The force of repulsion between two point charges is F, when these are at a distance 0.1 m apart. Now the point charges are replaced by sphere of radii 5 cm each having the same charge as that of the respective point charges. The distance between their centre is again kept 0.1 m ; then the force of repulsion will	A. Increase B. Decrease C. Remain F D. Become 10F/9

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ECAT Pre Computer Science Chapter 12 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 12 Electrostatics

ECAT Physics Chapter 12 Electrostatics

Potentiometer is more sensitive than voltmeter, because

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

The capacity of a parallel plat capacitor depends on the

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)

Heating effect caused by an electric circuit is written

A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is

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

Magnetic effect at a point caused due to flow a current depend upon the

A certain charge liberates 0.8 g of oxygen. The same charge will liberate. how many g of silver?

Solar cell converts sunlight directly into

An electric dipole is at the centre of a hollow sphere of radius r. The total normal electric flux through the sphere is (here Q is the charge and d is the distance between the two charges of the dipole)

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

The unit of resistivity is

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

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

Prepare Complete Set Wise ECAT Physics Chapter 12 Electrostatics MCQs Online With Answers

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Top Scorers Of ECAT Physics Chapter 12 Electrostatics MCQ`s Test

ECAT Physics Chapter 12 Important MCQ's

Test Questions

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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