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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
In RC series circuit the time during which the capacitor acquires 0.63 times the equilibrium charge is called
Question # 2
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 # 3
The potential difference across each resistance in series combination is
Question # 4
The capacitance of a parallel plate capacitor depends upon
Question # 5
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 # 6
A (100 W , 200 W) bulb is connected to a 160 V power supply. The power consumption would be
Question # 7
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 # 8
The resistivity of a substance depends upon the
Question # 9
Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then
Question # 10
One coulomb of charge is created by
Question # 11
The SI unit of capacitance is
Question # 12
The SI unit of conductivity is
Question # 13
If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be
Question # 14
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
Question # 15
In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes
Question # 16
If the length of the conductor is double and its cross sectional area is halved, its conductance will
Question # 17
Two point charge +3μC and +8μC repel each other with a force of 40 N. If a charge of -5μC is added to each of them, then the force between then will become
Question # 18
Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?
Question # 19
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 # 20
Thermocouple is an arrangement of two different metals
Question # 21
Coulomb's force between two point charges depends upon
Question # 22
The unit of intensity of electric field is
Question # 23
The ohm's is defined as
Question # 24
Electron volt is the unit of
Question # 25
The capacity of a parallel plat capacitor depends on the
Question # 26
The value of electrical constant of proportionality k is
Question # 27
Which of the following does not obey ohm's law?
Question # 28
At ordinary temperature, an increase in temperature increases the conductivity of
Question # 29
The thermistors are usually made of
Question # 30
The nature of capacity of electrostatic capacitor depends on
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 -
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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 -
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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 electric intensity outside the two oppositely charged parallel metal plates is |
A. Maximum
B. Minimum
C. Zero
D. Infinite
|
| 2 | If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be |
A. 5μF
B. 20μF
C. 10μF
D. 15μF
|
| 3 | In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes |
A. Four-fold
B. One-half
C. One-fourth
D. Zero
|
| 4 | A wire of radius r has resistance R. If it is stretched to a wire of r/2 radius, then the resistance becomes |
A. 2R
B. 4R
C. 16R
D. Zero
|
| 5 | Ohm established a relation between |
A. voltage and resistance
B. voltage and charge
C. voltage and current
D. voltage resistance and charge
|
| 6 | The electric field intensity at a point due to a point charge |
A. Falls off inversely as the distance
B. Falls off inversely as the square of distance
C. Remains unchanged with distance
D. Increase directly as square of distance
|
| 7 | If the two charges in Coulomb's law have double distance between them, then electric force |
A. Becomes two-fold
B. Becomes four-fold
C. Remains the same
D. None of these
|
| 8 | 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
|
| 9 | 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
|
| 10 | Which one of the following is the unit of electric field intensity |
A. JC-1
B. Vm-1
C. Cm-1
D. CJ-1
|
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