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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
Free electrons are
Question # 2
At any point on the right bisector of the line joining two equal and opposite charges
Question # 3
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 # 4
The nature of capacity of electrostatic capacitor depends on
Question # 5
The electric lines of force are
Question # 6
A conducting wire is drawn to double its length. Final resistivity of the material will be
Question # 7
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 # 8
The liquid which conduct current is known as
Question # 9
Some charge is being given to a conductor. Then its potential
Question # 10
The electric field will be uniform
Question # 11
One electron volt is equal to
Question # 12
A (100 W , 200 W) bulb is connected to a 160 V power supply. The power consumption would be
Question # 13
The potential difference across the conductors should be maintained constant by connecting the ends of wire to the terminal of a device called a source of
Question # 14
Ohm is the unit of
Question # 15
Thermocouple is an arrangement of two different metals
Question # 16
The electric flux is linked with a surface will be maximum when
Question # 17
The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is
Question # 18
The SI unit of conductivity is
Question # 19
In a building, there are 15 bulbs of 40 watts, 5 bulbs of 100 watts, 5 fans of 80 watts and a heater of 1 kilowatt. The voltage of the electric main is 220 volts. The minimum efficiency of the main fuse of the building will be
Question # 20
The capacity of a parallel plat capacitor depends on the
Question # 21
The conductivity of a superconductor is
Question # 22
The minimum charge on any object can not be less than
Question # 23
The charge carriers in electrolyte are positive and negative
Question # 24
A one microfarad capacitor of a TV is subjected to 4000 V potential difference. The energy stored in capacitor is
Question # 25
The SI unit of electric field intensity is
Question # 26
Ohm's law states that
Question # 27
One joule is equal to
Question # 28
In Pakistan electricity is supplied for domestic use at 220 V, it is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in Pakistan is R, the resistance of a 60 W bulb for use in USA will be
Question # 29
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 # 30
In RC series circuit the time during which the capacitor acquires 0.63 times the equilibrium charge is called
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 | In a voltmeter the conduction takes place due to |
A. Electrons only
B. Holes only
C. Electrons and holes
D. Electrons and ions
|
| 2 | The relation V = IR represents |
A. Ampere law
B. Faraday's law
C. Ohm's law
D. Len's law
|
| 3 | 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
|
| 4 | Taking the earth to be a spherical conductor of diameter 12.8 x 103km. Its capacity will be |
A. 711μF
B. 611μF
C. 811μF
D. 511μF
|
| 5 | Capacitance of two or more capacitors |
A. Increases in series combination
B. Increases in parallel combination
C. Remains unchanged
D. None of the above
|
| 6 | A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is |
A. C
B. C/2
C. Zero
D. 2C
|
| 7 | Which one of the following has larger value of relative permitivity Erat room temperature? |
A. Vaccum
B. Air
C. Glass
D. Water
|
| 8 | The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is |
A. 21 x 103+ 10%
B. 23 x 101+ 10%
C. 21 x 103+ 5%
D. 12 x 103+ 5%
|
| 9 | 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
|
| 10 | Resistor is a device which convert electric energy to |
A. Heat energy
B. Chemical energy
C. Elastic energy
D. All of the above
|
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