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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
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 # 2
Some charge is being given to a conductor. Then its potential
Question # 3
The electric intensity outside the two oppositely charged parallel metal plates is
Question # 4
A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?
Question # 5
The substances whose resistance decreases with the increase in temperature these substances have coefficient of
Question # 6
An electric charge at rest is
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
The relation between charge 'Q' and current 'I' is given by
Question # 9
The electric field will be uniform
Question # 10
The resistance of 20 cm long wire is 10Ω. When the length is changed to 40 cm. The new resistance is
Question # 11
Electric potential of earth is taken to be zero because the earth is good
Question # 12
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 # 13
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 # 14
The ratio of the gravitational force Fgto the electrostatic force Febetween two electrons at the same distance apart is approximately
Question # 15
The graphical representation of ohm's law is
Question # 16
The relation between the charge Q of a parallel plate capacitor and the P.D between its plates is
Question # 17
The current through a metallic conductor is due to the motion of
Question # 18
The electrode connected with the positive terminal of the current source is called
Question # 19
The SI unit of electric flux is
Question # 20
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 # 21
A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?
Question # 22
When a dielectric material is introduced between the plates of a charged condenser the electric field between the plates
Question # 23
The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is
Question # 24
The SI unit of conductivity is
Question # 25
The unit of resistance is
Question # 26
The charge carriers in electrolyte are positive and negative
Question # 27
The dot product of electric field intensity E and vector area A is called
Question # 28
A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is
Question # 29
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 # 30
The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is
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 -
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 charge per unit time through any cross-section of a conductor is called |
A. capacitance
B. electric power
C. current
D. potential difference
|
| 2 | A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be |
A. 1840 KeV
B. 1/1840 KeV
C. 1 KeV
D. 920 KeV
|
| 3 | A medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance |
A. Increase k time
B. Decreases k times
C. Decreases 1/K times
D. Remains unchanged
|
| 4 | A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is |
A. Charge Q
B. Potential V
C. Capacity
D. Energy U
|
| 5 | The SI unit of electric field intensity is |
A. CN-1
B. NC-1or Vm-1
C. JC-1
D. AV-1
|
| 6 | An alpha particle is accelerated through a potential difference of 106volt. Its kinetic energy will be |
A. 1 MeV
B. 2 MeV
C. 4 MeV
D. 8 MeV
|
| 7 | If a 40 watt light bulb burns for 2 hours. how much heat is generated |
A. 288 x 103J
B. 288 x 108J
C. 288 x 105J
D. 288 x 106J
|
| 8 | The liquid which conduct current is known as |
A. heating effect
B. chemical energy
C. electrolyte
D. ohm's law
|
| 9 | Coulomb force, when any material medium is placed between two charges |
A. Increases
B. Decreases
C. Remain unchanged
D. None of these
|
| 10 | 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
|
Test Questions