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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
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 # 2
The thermistors are usually made of
Question # 3
In a voltmeter the conduction takes place due to
Question # 4
A conducting wire is drawn to double its length. Final resistivity of the material will be
Question # 5
Current provided by a battery is maximum when
Question # 6
A charge of 0.1 c accelerated through a potential difference of 1000V acquires kinetic energy
Question # 7
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 # 8
The electric intensity at infinite distance from the point charge will be
Question # 9
A one microfarad capacitor of a TV is subjected to 4000 V potential difference. The energy stored in capacitor is
Question # 10
One electron volt is equal to
Question # 11
The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is
Question # 12
The electric field will be uniform
Question # 13
Resistance of a conductor is increased, the currant will
Question # 14
The SI unit of current is
Question # 15
Solar cell converts sunlight directly into
Question # 16
The SI unit of capacitance is
Question # 17
In a charged capacitor the energy is stored in
Question # 18
Electric flux is defined by the relation
Question # 19
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 # 20
A current of 1.6 A is passed through a solution of CuSO4. How many Cu2+ions are liberated in one minute?
Question # 21
The ratio of the gravitational force Fgto the electrostatic force Febetween two electrons at the same distance apart is approximately
Question # 22
In bringing an electron towards another electron, electrostatic potential energy of system
Question # 23
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 # 24
Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then
Question # 25
The relation V = IR represents
Question # 26
The ohm's is defined as
Question # 27
Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?
Question # 28
In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes
Question # 29
Ohm established a relation between
Question # 30
Resistance of a conductor depends upon
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 -
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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 | Heating effect caused by an electric circuit is written |
A. H = I2Rt
B. H = I2R
C. H = IR2t
D. H = IR2
|
| 2 | 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
|
| 3 | Which of the following represents an electric current? |
A. C-1
B. CS-1
C. J.S-1
D. dynes-1
|
| 4 | The potential difference across each resistance in series combination is |
A. same
B. different
C. zero
D. none of these
|
| 5 | One coulomb per second is equal to |
A. One volt
B. One ampere
C. One hom
D. One henry
|
| 6 | An electric charge at rest is |
A. Only an electric field
B. Only a magnetic field
C. Both electric and magnetic fields
D. None of the above
|
| 7 | Current provided by a battery is maximum when |
A. Internal resistance equal to external resistance
B. Internal resistance is greater than external resistance
C. Internal resistance is less then external resistance
D. None of these
|
| 8 | A capacitor is charged with a battery and then it is disconnected. A slab of dielectric is now inserted between the plates, then |
A. The charge in the plates reduces and potential difference increase
B. Potential difference between the plates increase, stored energy decreases and charge remains the same
C. Potential difference between the plates decreases and charge remains unchanged
D. None of the above
|
| 9 | Free electrons are |
A. tightly bound
B. fixed
C. loosely bound
D. tightly fixed
|
| 10 | 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
|
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