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MCQ's Test For Physics ECAT Pre Engineering Chapter 12 Electrostatics
Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 12 Electrostatics
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Total Questions30
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Time Allowed30
Physics ECAT Pre Engineering Chapter 12 Electrostatics
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Question # 1
An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be
Question # 2
The conductivity of a superconductor is
Question # 3
The SI unit of electric field intensity is
Question # 4
Consider a spherical shell of metal at he centre of which a positive point charge is kept
Question # 5
A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?
Question # 6
Resistance of a conductor is increased, the currant will
Question # 7
A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be
Question # 8
The ratio of the gravitational force Fgto the electrostatic force Febetween two electrons at the same distance apart is approximately
Question # 9
Coulomb's force between two point charges depends upon
Question # 10
The relation V = IR represents
Question # 11
A current of 1.6 A is passed through a solution of CuSO4. How many Cu2+ions are liberated in one minute?
Question # 12
A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J
Question # 13
Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be
Question # 14
The electric field intensity at a point due to a point charge
Question # 15
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?
Question # 16
Calculate the amount of charge flowing in 2 minutes in a wire of resistance 10Ωwhen a potential difference of 20 V is applied between its ends
Question # 17
The concept of field theory was put forward by
Question # 18
The current through a metallic conductor is due to the motion of
Question # 19
The material in the form of wire or rod or plate which leads the current into or cut of the electrolyte is known as
Question # 20
Surface density of charge is defined as
Question # 21
Which one of the following has larger value of relative permitivity Erat room temperature?
Question # 22
Some charge is being given to a conductor. Then its potential
Question # 23
The fractional change in resistance per kelvin is known as
Question # 24
The resistance of an incandescent lamp is
Question # 25
At any point on the right bisector of the line joining two equal and opposite charges
Question # 26
In a voltmeter the conduction takes place due to
Question # 27
When three identical bulbs of 60 watt, 200 volt rating are connected in series to a 200 volt supply, the power drawn by them will be
Question # 28
Solar cell converts sunlight directly into
Question # 29
A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?
Question # 30
A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor
Top Scorers Of Physics ECAT Pre Engineering Chapter 12 Electrostatics MCQ`s Test
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ECAT Physics Chapter 12 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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 |
A. Coulomb's law
B. Gauss's law
C. Biot-Sarwat law
D. Ampere's law
|
| 2 | Ohm established a relation between |
A. voltage and resistance
B. voltage and charge
C. voltage and current
D. voltage resistance and charge
|
| 3 | The force between two chares 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become |
A. 7.20 N
B. 11.25 N
C. 22.50 N
D. 45.00
|
| 4 | Resistance of a conductor depends upon |
A. the quantity of current passing through it
B. the voltage applied between its end
C. its dimensions, physical state and nature of its material
D. all of the above
|
| 5 | 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) |
A. Q/4πr2
B. 2Q/4πr2
C. Q.d
D. Zero
|
| 6 | Which of the following represents an electric current? |
A. C-1
B. CS-1
C. J.S-1
D. dynes-1
|
| 7 | If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be |
A. 0.1 watt
B. 1 watt
C. 10 watt
D. 100 watt
|
| 8 | Battery is charged in motor cars, which is based on |
A. Chemical effect
B. Magnetic effect
C. Electric effect
D. None
|
| 9 | The unit of resistivity is |
A. ohm
B. ohm-m2
C. ohm-meter
D. ohm-m-1
|
| 10 |
|
A. 5μF
B. 10μF
C. 3μF
D. 6μF
|
Test Questions
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fun day
02 Mar 2023Some answers are wrong
Hira arif
18 Jun 2019This website is grwst👍
Alisha
27 Apr 2019This website is great
baber
15 Feb 2019hi