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MCQ's Test For ECAT Pre General Science Physics Chapter 12 Electrostatics
Try The MCQ's Test For ECAT Pre General Science Physics Chapter 12 Electrostatics
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Total Questions30
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Time Allowed30
ECAT Pre General Science Physics Chapter 12 Electrostatics
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Question # 1
The electric field due to an infinite long thin wire at a distance R varies as
Question # 2
If the length of the conductor is double and its cross sectional area is halved, its conductance will
Question # 3
The SI unit of current is
Question # 4
A medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance
Question # 5
The minimum charge on any object can not be less than
Question # 6
The potential difference across each resistance in series combination is
Question # 7
A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?
Question # 8
Cause of heat production in a current carrying conductor is
Question # 9
If we plot graph between potential difference (V) and current (I) obeying ohm's law, it will give us
Question # 10
Current provided by a battery is maximum when
Question # 11
The electric intensity outside the two oppositely charged parallel metal plates is
Question # 12
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 # 13
The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is
Question # 14
A certain charge liberates 0.8 g of oxygen. The same charge will liberate. how many g of silver?
Question # 15
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 # 16
The SI unit of electric field intensity is
Question # 17
The capacitance of a parallel plate capacitor depends upon
Question # 18
The charge per unit time through any cross-section of a conductor is called
Question # 19
The earth's potential is taken as
Question # 20
Two point charge +3μC and +8μC repel each other with a force of 40 N. If a charge of -5μC is added to each of them, then the force between then will become
Question # 21
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 # 22
A condenser of capacity 50μF is charged to 10 V.The energy stored is
Question # 23
A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is
Question # 24
If 2.2 kilowatt power is transmitted through 1 10 ohm line at 22000 volt, the power loss in the form of heat will be
Question # 25
The fractional change in resistance per kelvin is known as
Question # 26
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 # 27
The SI unit of electric flux is
Question # 28
If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be
Question # 29
A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor
Question # 30
The electric flux is linked with a surface will be maximum when
Top Scorers Of ECAT Pre General Science Physics Chapter 12 Electrostatics MCQ`s Test
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V Viral Edits 27 - May - 2024 13 Min 50 Sec 65/120 -
T Tamseela Ehsan 04 - Sep - 2023 13 Min 56 Sec 50/120 -
K Khurram 29 - Jan - 2019 16 Min 26 Sec 50/120 -
W Waleed Ahmed 25 - Feb - 2023 22 Min 39 Sec 45/120 -
I Inzmam Rajper 16 - Jun - 2022 10 Min 50 Sec 40/120 -
S Saba 18 - Feb - 2019 15 Min 57 Sec 30/120 -
A Arsalan Ahmad 16 - Jul - 2024 11 Min 36 Sec 20/120 -
A Ali 31 - May - 2023 07 Min 17 Sec 10/120 -
A Abc 14 - Aug - 2021 00 Min 29 Sec 0/120 -
A Aulakh Brand 06 - Feb - 2022 03 Min 17 Sec 0/120 -
A Abdul Jabbar 17 - Apr - 2018 03 Min 18 Sec 0/120
ECAT Physics Chapter 12 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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 |
A. q = Q/4
B. q = Q/2
C. q = !
D. None of these
|
| 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 | If 2.2 kilowatt power is transmitted through 1 10 ohm line at 22000 volt, the power loss in the form of heat will be |
A. 0.1 watt
B. 1 watt
C. 10 watt
D. 100 watt
|
| 4 | The SI unit of permitivity is |
A. Nm2C2
B. N-1m-2C2
C. NmC2
D. Nm2C-1
|
| 5 | The capacity of a parallel plat capacitor depends on the |
A. Type to metal used
B. Thickness of plates
C. Potential applied across the plates
D. Separation between the plates
|
| 6 | The potential difference across each resistance in series combination is |
A. same
B. different
C. zero
D. none of these
|
| 7 | If one volt is needed to cause a current of one ampere to flow in a conductor, its resistance is |
A. one ohm
B. one joule
C. one volt
D. one ampere
|
| 8 | Potentiometer is more sensitive than voltmeter, because |
A. Voltmeter has a very high resistance
B. Voltmeter has a very low resistance
C. Potentiometer does not draw any current from a source of unknown potential difference
D. Potentiometer is sensitive
|
| 9 | An electric dipole is at the centre of a hollow sphere of radius r. The total normal electric flux through the sphere is (here Q is the charge and d is the distance between the two charges of the dipole) |
A. Q/4πr2
B. 2Q/4πr2
C. Q.d
D. Zero
|
| 10 | The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is |
A. 9 x 105V
B. 9 V
C. 8 x 106V
D. 80 V
|
Test Questions
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