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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
00:00
Question # 1
In Pakistan electricity is supplied for domestic use at 220 V, it is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in Pakistan is R, the resistance of a 60 W bulb for use in USA will be
Question # 2
Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?
Question # 3
A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?
Question # 4
What is the current is a 2 x 106ohm resistor having a potential difference of 2 x 103volts?
Question # 5
One coulomb of charge is created by
Question # 6
In a voltmeter the conduction takes place due to
Question # 7
Equal charges are given to two spheres of different radii. The potential will
Question # 8
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
Question # 9
A ten ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts
Question # 10
The resistance of a conductor does not depend on its
Question # 11
Some charge is being given to a conductor. Then its potential
Question # 12
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
Question # 13
The electric intensity at infinite distance from the point charge will be
Question # 14
In a charged capacitor the energy is stored in
Question # 15
The electric field will be uniform
Question # 16
Three resistors of resistance 2,3 and 6 ohms are connected in parallel, their equivalent resistance is
Question # 17
An electric charge at rest is
Question # 18
The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart, with force of repulsion between the spheres to be 10-19N, is
Question # 19
The capacitance of a parallel plate capacitor depends upon
Question # 20
In a building, there are 15 bulbs of 40 watts, 5 bulbs of 100 watts, 5 fans of 80 watts and a heater of 1 kilowatt. The voltage of the electric main is 220 volts. The minimum efficiency of the main fuse of the building will be
Question # 21
One electron volt is equal to
Question # 22
A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is
Question # 23
The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is
Question # 24
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)
Question # 25
The resistance of the given conductor can be increased by
Question # 26
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
Question # 27
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 # 28
Cause of heat production in a current carrying conductor is
Question # 29
The relation between charge 'Q' and current 'I' is given by
Question # 30
One coulomb per second is equal to
Top Scorers Of Physics ECAT Pre Engineering Chapter 12 Electrostatics MCQ`s Test
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M Mehreen Ather 02 - Dec - 2024 30 Min 19 Sec 90/120 -
S Salvaa Sheikh 13 - Sep - 2024 24 Min 16 Sec 85/120 -
S Sualeh Murtaza 15 - Nov - 2024 05 Min 29 Sec 80/120 -
N Nitalaya Hassan 23 - Dec - 2024 06 Min 15 Sec 80/120 -
F Fatima Anis 26 - Dec - 2024 13 Min 35 Sec 80/120 -
A Abdullah Zubair 25 - Dec - 2024 14 Min 30 Sec 80/120 -
C Ch Ubaid Ullah 06 - Mar - 2026 17 Min 40 Sec 80/120 -
A Ahmad Sufyan 05 - May - 2026 18 Min 20 Sec 80/120 -
H Hanook Masih 25 - Sep - 2024 12 Min 15 Sec 75/120 -
F Furqan Asif 26 - Mar - 2026 36 Min 02 Sec 72/120 -
U usman gujjar 02 - Dec - 2024 07 Min 03 Sec 70/120 -
T Taha 18 - Mar - 2026 17 Min 17 Sec 68/120 -
H hussain naqvi 19 - Sep - 2024 18 Min 43 Sec 65/120 -
H Humera Noor 27 - Dec - 2024 19 Min 28 Sec 65/120 -
S suzi 10 - Feb - 2026 08 Min 22 Sec 64/120
ECAT Physics Chapter 12 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | If we plot graph between potential difference (V) and current (I) obeying ohm's law, it will give us |
A. parabola
B. straight line
C. hyper bola
D. ellipse
|
| 2 | If we increase the distance between two plates of the capacitor, the capacitance will |
A. Increase
B. Decrease
C. Remain same
D. First increase then decrease
|
| 3 | Ohm's law states that |
A. The current through a resistor is directly proportional to the applied voltage
B. The voltage across a resistor is directly proportional to the current passing through it
C. Resistance is the constant of proportionality between the voltage and current
D. all of these
|
| 4 | Free electrons are |
A. tightly bound
B. fixed
C. loosely bound
D. tightly fixed
|
| 5 | A conducting wire is drawn to double its length. Final resistivity of the material will be |
A. Double of the original one
B. Half of the original one
C. One fourth of the original one
D. Same as original one
|
| 6 | The charge carriers in gases are |
A. electrons
B. ions
C. protons
D. ions and electrons
|
| 7 | A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed? |
A. 200 W
B. 302.5
C. 250 W
D. 350 W
|
| 8 | The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is |
A. 4/5Ω
B. 5/4Ω
C. 20Ω
D. 0.05 Ω
|
| 9 | If the length of the conductor is double and its cross sectional area is halved, its conductance will |
A. Increase four fold
B. Become one-fourth
C. Become one-half
D. Remains unchanged
|
| 10 | Which of the following represents an electric current? |
A. C-1
B. CS-1
C. J.S-1
D. dynes-1
|
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