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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
When a dielectric material is introduced between the plates of a charged condenser the electric field between the plates
Question # 2
The SI unit of current is
Question # 3
What is the current is a 2 x 106ohm resistor having a potential difference of 2 x 103volts?
Question # 4
Capacitance of two or more capacitors
Question # 5
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 # 6
Which one of the following has larger value of relative permitivity Erat room temperature?
Question # 7
The electric flux from a closed surface
Question # 8
The speed of randomly moving electrons depends upon
Question # 9
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 # 10
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 # 11
One joule is equal to
Question # 12
When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to
Question # 13
A (100 W , 200 W) bulb is connected to a 160 V power supply. The power consumption would be
Question # 14
The electric flux is linked with a surface will be maximum when
Question # 15
The electric field due to an infinite long thin wire at a distance R varies as
Question # 16
One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is
Question # 17
The SI unit of conductivity is
Question # 18
The resistance of the given conductor can be increased by
Question # 19
In RC series circuit the time during which the capacitor acquires 0.63 times the equilibrium charge is called
Question # 20
The electric field will be uniform
Question # 21
Ohm's law states that
Question # 22
Physicist George Simon ohm was a
Question # 23
Thermocouple is an arrangement of two different metals
Question # 24
The resistance of an incandescent lamp is
Question # 25
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 # 26
Some charge is being given to a conductor. Then its potential
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 electrode connected with the positive terminal of the current source is called
Question # 30
Current provided by a battery is maximum when
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 -
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H Humera Noor 27 - Dec - 2024 19 Min 28 Sec 65/120
ECAT Physics Chapter 12 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | Which of the following does not obey ohm's law? |
A. Copper
B. Al
C. Diode
D. None
|
| 3 | A wire is bent into a ring of radius R is given a charge q. The magnitude of the electrical field at the centre of the ring is |
A. Two
B. 1/2
C. Zero
D. 3/2
|
| 4 | The unit of conductance is |
A. ohm
B. meter
C. mho
D. ohm-meter
|
| 5 | The speed of randomly moving electrons depends upon |
A. pressure
B. volume
C. temperature
D. mass
|
| 6 | 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 |
A. Zero
B. F/2
C. F
D. 2F
|
| 7 | For two resistance wires joined in parallel, the resultant resistance is 6/5 ohm. When one of the resistance wire breaks, the effective resistance becomes 2 ohm. The resistance of the broken wire is |
A. 3/5 ohm
B. 2 ohm
C. 6/5 ohm
D. 3 ohm
|
| 8 | The SI unit of electric flux is |
A. Weber
B. Nm2C-1
C. NmC-1
D. Nm-2C
|
| 9 | The resistance of 20 cm long wire is 10Ω. When the length is changed to 40 cm. The new resistance is |
A. 10Ω
B. 20Ω
C. 30Ω
D. 40Ω
|
| 10 | The SI unit of current is |
A. watt
B. coulomb
C. volt
D. ampere
|
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