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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
Coulomb force, when any material medium is placed between two charges
Question # 2
Heating effect caused by an electric circuit is written
Question # 3
A certain charge liberates 0.8 g of oxygen. The same charge will liberate. how many g of silver?
Question # 4
Electric potential of earth is taken to be zero because the earth is good
Question # 5
The graphical representation of ohm's law is
Question # 6
In RC series circuit the time during which the capacitor acquires 0.63 times the equilibrium charge is called
Question # 7
Electric generators which convert mechanical energy into
Question # 8
The ratio of the gravitational force Fgto the electrostatic force Febetween two electrons at the same distance apart is approximately
Question # 9
Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be
Question # 10
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 # 11
Battery is charged in motor cars, which is based on
Question # 12
Taking the earth to be a spherical conductor of diameter 12.8 x 103km. Its capacity will be
Question # 13
The unit of resistivity is
Question # 14
Resistor is a device which convert electric energy to
Question # 15
Electron volt is the unit of
Question # 16
The substances whose resistance decreases with the increase in temperature these substances have coefficient of
Question # 17
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 # 18
An alpha particle is accelerated through a potential difference of 106volt. Its kinetic energy will be
Question # 19
The energy stored in a charge capacitor
Question # 20
The electric intensity outside the two oppositely charged parallel metal plates is
Question # 21
In bringing an electron towards another electron, electrostatic potential energy of system
Question # 22
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 # 23
The ohm's is defined as
Question # 24
A wire of radius r has resistance R. If it is stretched to a wire of r/2 radius, then the resistance becomes
Question # 25
One coulomb of charge is created by
Question # 26
A one microfarad capacitor of a TV is subjected to 4000 V potential difference. The energy stored in capacitor is
Question # 27
Specific resistance of a wire depends upon
Question # 28
If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be
Question # 29
Which of the following does not obey ohm's law?
Question # 30
The electric field intensity at a point due to a point charge
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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C Ch Ubaid Ullah 06 - Mar - 2026 17 Min 40 Sec 80/120 -
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H Humera Noor 27 - Dec - 2024 19 Min 28 Sec 65/120
ECAT Physics Chapter 12 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | The dot product of electric field intensity E and vector area A is called |
A. Electric potential
B. Electric flux
C. Electric field
D. Magnetic field
|
| 3 | The material in the form of wire or rod or plate which leads the current into or cut of the electrolyte is known as |
A. voltmeters
B. resistance
C. electrode
D. current
|
| 4 | A condenser of capacity 50μF is charged to 10 V.The energy stored is |
A. 1.25 x 10-3J
B. 3.75 x 10-3J
C. 2.5 x 10-3J
D. 5 x 10-3J
|
| 5 | In a Milikian's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10-19C. The number of excess electrons on the drop is |
A. 3.9
B. 4
C. 4.2
D. 6
|
| 6 | The electrode connected with the positive terminal of the current source is called |
A. cathode
B. anode
C. electrolyte
D. position
|
| 7 | The resistance of an incandescent lamp is |
A. Smaller when switched on
B. Greater when switched off
C. The same whether it is switch off or switch on
D. Greater when switched on
|
| 8 | Which of the following represents an electric current? |
A. C-1
B. CS-1
C. J.S-1
D. dynes-1
|
| 9 | The concept of field theory was put forward by |
A. Franklin
B. Kepler
C. Oersted
D. Michael Faraday
|
| 10 | 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 |
A. -q
B. +q
C. -2q
D. +4q
|
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
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15 Feb 2019hi