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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
Which one of the following has larger value of relative permitivity Erat room temperature?
Question # 2
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 # 3
Heating effect caused by an electric circuit is written
Question # 4
A charge of 0.1 c accelerated through a potential difference of 1000V acquires kinetic energy
Question # 5
If an electron of charge 'e' is accelerated through a potential difference V., it will acquire energy
Question # 6
The dot product of electric field intensity E and vector area A is called
Question # 7
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 # 8
Free electrons are
Question # 9
The conventional current in a circuit is defined as " current which passes from a point at higher potential to a point at lower potential as if it represent a movement of
Question # 10
One electron volt is equal to
Question # 11
The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is
Question # 12
The earth's potential is taken as
Question # 13
The current through a metallic conductor is due to the motion of
Question # 14
If a charged spherical conductor of radius 10 cm has potential V at a point distance 5 cm from its centre, then the potential at a point distance 15 cm from the centre will be
Question # 15
If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be
Question # 16
The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is
Question # 17
The substances whose resistance decreases with the increase in temperature these substances have coefficient of
Question # 18
If we plot graph between potential difference (V) and current (I) obeying ohm's law, it will give us
Question # 19
The powers of tow electric bulbs are 100 W and 200 W. Both of them are joined with 220 V mains. The ratio of resistances of their filaments will be
Question # 20
One joule is equal to
Question # 21
A ten ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts
Question # 22
The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is
Question # 23
At any point on the right bisector of the line joining two equal and opposite charges
Question # 24
An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be
Question # 25
The SI unit of conductivity is
Question # 26
The SI unit of electric flux is
Question # 27
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 # 28
In a voltmeter the conduction takes place due to
Question # 29
The resistance of an incandescent lamp is
Question # 30
A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?
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 | 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 |
A. 10μF
B. 20μF
C. 30μF
D. 15μF
|
| 2 | When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to |
A. One joule
B. One erg
C. One electron volt
D. None of these
|
| 3 | A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed? |
A. 200 W
B. 302.5
C. 250 W
D. 350 W
|
| 4 | Which of the following represents an electric current? |
A. C-1
B. CS-1
C. J.S-1
D. dynes-1
|
| 5 | The SI unit of electric flux is |
A. Weber
B. Nm2C-1
C. NmC-1
D. Nm-2C
|
| 6 | 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
|
| 7 | 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
|
| 8 | The capacitance of a parallel plate capacitor depends upon |
A. Area of the plates
B. Separation between the plates
C. Medium between the plates
D. All of the above
|
| 9 | In a voltmeter the conduction takes place due to |
A. Electrons only
B. Holes only
C. Electrons and holes
D. Electrons and ions
|
| 10 | An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be |
A. V/e
B. eV
C. e/V
D. V
|
Test Questions