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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
If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be
Question # 2
Battery is charged in motor cars, which is based on
Question # 3
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 # 4
The unit of resistivity is
Question # 5
If the length of the conductor is double and its cross sectional area is halved, its conductance will
Question # 6
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)
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 SI unit of current is
Question # 9
An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be
Question # 10
The graphical representation of ohm's law is
Question # 11
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 # 12
In a voltmeter the conduction takes place due to
Question # 13
The unit of resistance is
Question # 14
The fractional change in resistance per kelvin is known as
Question # 15
The resistance of an incandescent lamp is
Question # 16
The speed of randomly moving electrons depends upon
Question # 17
The electric flux is linked with a surface will be maximum when
Question # 18
One coulomb of charge is created by
Question # 19
The electric field will be uniform
Question # 20
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 # 21
Taking the earth to be a spherical conductor of diameter 12.8 x 103km. Its capacity will be
Question # 22
In a Milikian's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10-19C. The number of excess electrons on the drop is
Question # 23
The material in the form of wire or rod or plate which leads the current into or cut of the electrolyte is known as
Question # 24
One joule is equal to
Question # 25
The earth's potential is taken as
Question # 26
A current of 1.6 A is passed through a solution of CuSO4. How many Cu2+ions are liberated in one minute?
Question # 27
The ohm's is defined as
Question # 28
The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is
Question # 29
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 # 30
Magnetic effect at a point caused due to flow a current depend upon the
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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Z Zaka Ullah 09 - Nov - 2024 07 Min 20 Sec 60/120
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 | Magnetic effect at a point caused due to flow a current depend upon the |
A. Quantity of current
B. Distance from current
C. Both the quantity of current and distance from current element
D. None of the all
|
| 3 | A medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance |
A. Increase k time
B. Decreases k times
C. Decreases 1/K times
D. Remains unchanged
|
| 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 | Electric potential of earth is taken to be zero because the earth is good |
A. Semiconductor
B. Conductor
C. Insulator
D. Dielectric
|
| 6 | The capacitance of a parallel plate capacitor depends upon |
A. Area of the plates
B. Separation between the plates
C. Medium between the plates
D. All of the above
|
| 7 | 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 |
A. -10 N
B. +10 N
C. +20 N
D. -20 N
|
| 8 | One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is |
A. 0.1 V
B. 8 V
C. 2 V
D. 0.5 V
|
| 9 | In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes |
A. Four-fold
B. One-half
C. One-fourth
D. Zero
|
| 10 | If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be |
A. 6 ohm
B. 4 ohm
C. zero ohm
D. 1.33 ohm
|
Test Questions