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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
Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?
Question # 2
The substances whose resistance decreases with the increase in temperature these substances have coefficient of
Question # 3
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 # 4
Electric potential of earth is taken to be zero because the earth is good
Question # 5
The electric flux is linked with a surface will be maximum when
Question # 6
The electric field due to an infinite long thin wire at a distance R varies as
Question # 7
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 # 8
A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is
Question # 9
The graphical representation of ohm's law is
Question # 10
The electric field will be uniform
Question # 11
Electric flux is defined by the relation
Question # 12
At any point on the right bisector of the line joining two equal and opposite charges
Question # 13
The ohm's is defined as
Question # 14
The electric lines of force are
Question # 15
Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then
Question # 16
The liquid which conduct current is known as
Question # 17
The SI unit of conductivity is
Question # 18
If the distance of separation between two chares is increased, the electrical potential energy of the system will
Question # 19
The SI unit of electric flux is
Question # 20
A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?
Question # 21
Which one of the following has larger value of relative permitivity Erat room temperature?
Question # 22
The capacitance of a parallel plate capacitor depends upon
Question # 23
A medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance
Question # 24
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
Question # 25
Heating effect caused by an electric circuit is written
Question # 26
The speed of randomly moving electrons depends upon
Question # 27
Resistor is a device which convert electric energy to
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
The potential difference across each resistance in series combination is
Question # 30
In a voltmeter the conduction takes place due 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 -
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C Ch Ubaid Ullah 06 - Mar - 2026 17 Min 40 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 | A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor |
A. Increases
B. Decreases
C. Remain unchanged
D. Becomes infinite
|
| 2 | In a charged capacitor the energy is stored in |
A. Both in positive and negative charges
B. Positive charges
C. The edges of the capacitor plates
D. The electric field between the plates
|
| 3 | 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
|
| 4 | The electric intensity outside the two oppositely charged parallel metal plates is |
A. Maximum
B. Minimum
C. Zero
D. Infinite
|
| 5 | If an electron of charge 'e' is accelerated through a potential difference V., it will acquire energy |
A. Ve
B. V/e
C. e/V
D. 2Ve
|
| 6 | A certain charge liberates 0.8 g of oxygen. The same charge will liberate. how many g of silver? |
A. 108 g
B. 10.8 g
C. 0.8 g
D. 108/0.8 g
|
| 7 | Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then |
A. R1= 2R2
B. R2= 2R1
C. R2 = 4R1
D. R1= 4R2
|
| 8 | Ohm is the unit of |
A. current
B. capacitance
C. energy
D. resistance
|
| 9 | 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 |
A. Zero
B. 10Ω
C. 1Ω
D. 0.10Ω
|
| 10 | Thermocouple is an arrangement of two different metals |
A. To convert heat energy in to electrical energy
B. To produce more heat
C. To convert heat energy into chemical energy
D. To convert electric energy in to heat energy
|
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