Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
MCQ's Test For Physics ECAT Pre Engineering Chapter 12 Electrostatics
Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 12 Electrostatics
-
Total Questions30
-
Time Allowed30
Physics ECAT Pre Engineering Chapter 12 Electrostatics
00:00
Question # 1
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 # 2
The charge per unit time through any cross-section of a conductor is called
Question # 3
In a charged capacitor the energy is stored in
Question # 4
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 # 5
What is the current is a 2 x 106ohm resistor having a potential difference of 2 x 103volts?
Question # 6
Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?
Question # 7
The SI unit of electric field intensity is
Question # 8
A certain charge liberates 0.8 g of oxygen. The same charge will liberate. how many g of silver?
Question # 9
If the length of the conductor is double and its cross sectional area is halved, its conductance will
Question # 10
The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is
Question # 11
A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is
Question # 12
Electric generators which convert mechanical energy into
Question # 13
The SI unit of permitivity is
Question # 14
Potentiometer is more sensitive than voltmeter, because
Question # 15
A charge Q is divided into two parts q and Q - q and separated by a distance R. The force of repulsion between them will be maximum when
Question # 16
If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be
Question # 17
Ohm is the unit of
Question # 18
A piece of fuse wire melts when a current of 15 ampere flows through it. With this current. If it dissipates 22.5 W, the resistance of fuse wire will be
Question # 19
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
Question # 20
A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is
Question # 21
The SI unit of current is
Question # 22
Battery is charged in motor cars, which is based on
Question # 23
An alpha particle is accelerated through a potential difference of 106volt. Its kinetic energy will be
Question # 24
The nature of capacity of electrostatic capacitor depends on
Question # 25
One coulomb per second is equal to
Question # 26
If the two charges in Coulomb's law have double distance between them, then electric force
Question # 27
Heating effect caused by an electric circuit is written
Question # 28
A car battery has e.m.f 12 volt and internal resistance 5 x 10-2ohm. If it draws 60 ampere current, the terminal voltage of the battery will be
Question # 29
A hollow insulated conduction sphere is given a positive charge of 10μC. What will be the electric field at the centre of the sphere if its radius is 2 meters?
Question # 30
The electric lines of force are
Top Scorers Of Physics ECAT Pre Engineering Chapter 12 Electrostatics MCQ`s Test
-
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 -
T Talha Khalil 18 - Jun - 2026 10 Min 55 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
ECAT Physics Chapter 12 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The resistance of 20 cm long wire is 10Ω. When the length is changed to 40 cm. The new resistance is |
A. 10Ω
B. 20Ω
C. 30Ω
D. 40Ω
|
| 2 | The speed of randomly moving electrons depends upon |
A. pressure
B. volume
C. temperature
D. mass
|
| 3 | A (100 W , 200 W) bulb is connected to a 160 V power supply. The power consumption would be |
A. 64 W
B. 80 W
C. 100 W
D. 125 W
|
| 4 | Physicist George Simon ohm was a |
A. German physical
B. French physicist
C. Chinese physicist
D. Russian physicist
|
| 5 | Magnetic effect at a point caused due to flow a current depend upon the |
A. Quantity of current
B. Distance from current
C. Both the quantity of current and distance from current element
D. None of the all
|
| 6 | The energy stored in a charge capacitor |
A. 1/2CV2
B. 1/2C2V
C. 1/2C/V2
D. None of these
|
| 7 | Potentiometer is more sensitive than voltmeter, because |
A. Voltmeter has a very high resistance
B. Voltmeter has a very low resistance
C. Potentiometer does not draw any current from a source of unknown potential difference
D. Potentiometer is sensitive
|
| 8 | Current provided by a battery is maximum when |
A. Internal resistance equal to external resistance
B. Internal resistance is greater than external resistance
C. Internal resistance is less then external resistance
D. None of these
|
| 9 | Surface density of charge is defined as |
A. Charge per unit volume
B. Charge per unit length
C. Charge per unit area
D. Charge per unit mass
|
| 10 | The liquid which conduct current is known as |
A. heating effect
B. chemical energy
C. electrolyte
D. ohm's law
|
Test Questions