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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
A point charge A of charge +4μC and another B of charge -1μC are placed in air at a distance 1 m apart. Then the distance of the point on the line joining the charge B, where the resultant electric field is zero, is (in m)
Question # 2
Electric potential of earth is taken to be zero because the earth is good
Question # 3
A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is
Question # 4
The unit of resistivity is
Question # 5
The energy required to charge a capacitor of 5μF by connecting D.C. source of 20 KV is
Question # 6
A 60 W bulb operates on 220 V supply. The current flowing through the bulb is
Question # 7
Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then
Question # 8
The electric lines of force are
Question # 9
Ohm is the unit of
Question # 10
In RC series circuit the time during which the capacitor acquires 0.63 times the equilibrium charge is called
Question # 11
If we plot graph between potential difference (V) and current (I) obeying ohm's law, it will give us
Question # 12
106electrons are moving through a wire per second, the current developed is
Question # 13
The electric intensity outside the two oppositely charged parallel metal plates is
Question # 14
In a voltmeter the conduction takes place due to
Question # 15
Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be
Question # 16
An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be
Question # 17
The relation V = IR represents
Question # 18
Resistance of a conductor depends upon
Question # 19
The earth's potential is taken as
Question # 20
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
Question # 21
A one microfarad capacitor of a TV is subjected to 4000 V potential difference. The energy stored in capacitor is
Question # 22
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 # 23
When three identical bulbs of 60 watt, 200 volt rating are connected in series to a 200 volt supply, the power drawn by them will be
Question # 24
At ordinary temperature, an increase in temperature increases the conductivity of
Question # 25
If the distance of separation between two chares is increased, the electrical potential energy of the system will
Question # 26
One coulomb per second is equal to
Question # 27
Magnetic effect at a point caused due to flow a current depend upon the
Question # 28
Potentiometer is more sensitive than voltmeter, because
Question # 29
A uniform resistance wire of Length L and diameter d has a resistance R. Another wire of same material has length, 4L and diameter 2d, the resistance will be
Question # 30
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
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 -
F Fatima Anis 26 - Dec - 2024 13 Min 35 Sec 80/120 -
A Abdullah Zubair 25 - Dec - 2024 14 Min 30 Sec 80/120 -
H Hanook Masih 25 - Sep - 2024 12 Min 15 Sec 75/120 -
U usman gujjar 02 - Dec - 2024 07 Min 03 Sec 70/120 -
H hussain naqvi 19 - Sep - 2024 18 Min 43 Sec 65/120 -
H Humera Noor 27 - Dec - 2024 19 Min 28 Sec 65/120 -
S suzi 10 - Feb - 2026 08 Min 22 Sec 64/120 -
Z Zaka Ullah 09 - Nov - 2024 07 Min 20 Sec 60/120 -
A Abdulrehman Haroon 26 - Sep - 2024 28 Min 20 Sec 60/120 -
1 123 Abcd 07 - Nov - 2024 12 Min 46 Sec 55/120 -
A Abdul rafay Malghani 02 - Dec - 2024 14 Min 25 Sec 55/120
ECAT Physics Chapter 12 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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 |
A. 7.20 N
B. 11.25 N
C. 22.50 N
D. 45.00
|
| 2 | Electric potential of earth is taken to be zero because the earth is good |
A. Semiconductor
B. Conductor
C. Insulator
D. Dielectric
|
| 3 | 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
|
| 4 | If we increase the distance between two plates of the capacitor, the capacitance will |
A. Increase
B. Decrease
C. Remain same
D. First increase then decrease
|
| 5 | 106electrons are moving through a wire per second, the current developed is |
A. 1.6 x 10-19
B. 1 A
C. 1.6 x 10-15 A
D. 106A
|
| 6 | Calculate the amount of charge flowing in 2 minutes in a wire of resistance 10Ωwhen a potential difference of 20 V is applied between its ends |
A. 120 C
B. 240 C
C. 20 C
D. 4 C
|
| 7 | The unit of resistance is |
A. volt
B. ampere
C. ohm
D. coat
|
| 8 | 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
|
| 9 | Electron volt is the unit of. |
A. Potential difference
B. Energy
C. Resistance
D. Capacitance
|
| 10 | If two bulbs one of 60 W and other of 100 W are connected in parallel, then which one of the following will flow more? |
A. 60 W bulb
B. 100 W bulb
C. Both equally
D. None of these
|
Test Questions