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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
The capacity of a parallel plat capacitor depends on the
Question # 2
The dot product of electric field intensity E and vector area A is called
Question # 3
A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is
Question # 4
A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?
Question # 5
Equal charges are given to two spheres of different radii. The potential will
Question # 6
Two conductors having the same type of charges are connected by a conducting wire. There would not be any amount of charges on them if
Question # 7
Taking the earth to be a spherical conductor of diameter 12.8 x 103km. Its capacity will be
Question # 8
A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?
Question # 9
The electric lines of force are
Question # 10
The earth's potential is taken as
Question # 11
Ohm's law states that
Question # 12
A closed surface contains two equal and opposite charges. The net electric flux from the surface will be
Question # 13
Heating effect caused by an electric circuit is written
Question # 14
Coulomb force, when any material medium is placed between two charges
Question # 15
A ten ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts
Question # 16
Which of the following represents an electric current?
Question # 17
The thermistors are usually made of
Question # 18
The nature of capacity of electrostatic capacitor depends on
Question # 19
When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to
Question # 20
One electron volt is equal to
Question # 21
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
Question # 22
For two resistance wires joined in parallel, the resultant resistance is 6/5 ohm. When one of the resistance wire breaks, the effective resistance becomes 2 ohm. The resistance of the broken wire is
Question # 23
At ordinary temperature, an increase in temperature increases the conductivity of
Question # 24
The resistance of the given conductor can be increased by
Question # 25
Potentiometer is more sensitive than voltmeter, because
Question # 26
If the distance of separation between two chares is increased, the electrical potential energy of the system will
Question # 27
The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is
Question # 28
The potential difference across each resistance in series combination is
Question # 29
In bringing an electron towards another electron, electrostatic potential energy of system
Question # 30
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)
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 -
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T Talha Khalil 18 - Jun - 2026 10 Min 55 Sec 80/120 -
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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 relation V = IR represents |
A. Ampere law
B. Faraday's law
C. Ohm's law
D. Len's law
|
| 2 | Physicist George Simon ohm was a |
A. German physical
B. French physicist
C. Chinese physicist
D. Russian physicist
|
| 3 | Electric generators which convert mechanical energy into |
A. solar energy
B. thermal energy
C. kinetic energy
D. electrical energy
|
| 4 | 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 |
A. 120 C
B. 240 C
C. 20 C
D. 4 C
|
| 5 | The unit of resistance is |
A. volt
B. ampere
C. ohm
D. coat
|
| 6 | 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? |
A. Zero
B. 5μC m-2
C. 20μC m-2
D. 8μC m-2
|
| 7 | The graphical representation of ohm's law is |
A. hyperbola
B. straight line
C. ellipse
D. parabola
|
| 8 | The speed of randomly moving electrons depends upon |
A. pressure
B. volume
C. temperature
D. mass
|
| 9 | If electric and gravitational force on an electron in a uniform electric field will be |
A. E=mg/q
B. E=q/mg
C. E=,g/q
D. E=qg/m
|
| 10 | The ratio of the gravitational force Fgto the electrostatic force Febetween two electrons at the same distance apart is approximately |
A. 9.8
B. 24 x 1019
C. 24 x 1042
D. 24 x 10-44
|
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