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Online Tests
Physics Fsc Part 2 Online Test MCQs With Answers
Question # 1
The electric flux through closed surface depends upon
Choose an answer
Charge
Medium
Geometry
Charge and Medium
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Question # 2
If magnetic field is doubled then magnetic energy density becomes.
Choose an answer
Four times
Two times
Three times
Six times
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Question # 3
Which one is not a crystalline solid.
Choose an answer
Zinc
Copper
Nylon
None of these
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Question # 4
In the equation if f
2
> then
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Question # 5
In AC system we generate sine wave form because:
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It san be easily draw
It produces least disturbance in electrical circuits
It is nature standard
Other waves cannot be produced easily
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Question # 6
Concept of electric field lines was given by:
Choose an answer
Michelson
Henry
Michael faraday
Oersted
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Question # 7
For Holography we use
Choose an answer
X ray
Laser
gama rays
Beta rays
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Question # 8
The unit of impedance is
Choose an answer
Farad
Henry
Tesla
Ohm
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Question # 9
An in cudutor may store energy in
Choose an answer
Its magnetic field
Its coil
Its electric field
A neighboring circuit
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Question # 10
The magnitude of back emf:
Choose an answer
Increases with sped of motor
Decreases with speed of motor
Remains same
None of above
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Question # 11
The peak to peak value of alternating voltage is
Choose an answer
2V
o
V
o
None of these
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Question # 12
The circuit of full wave rectification consist of
Choose an answer
Three diodes
Four diodes
Two diodes
One diode
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Question # 13
The motional emf developed in a conduction depends upon.
Choose an answer
Length
Orientation
Magnetic field
All of the above
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Question # 14
The mass spectrum of naturally occurring neon, showing
Choose an answer
1 isotope
2 isotope
3 isotope
4 isotope
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Question # 15
In purely resistive A.C circuit, instantaneous value of voltage and current:
Choose an answer
Current lags behind voltage
Current leads voltage by π/2
Both are in Phase
Voltage leads current by Pase θ=π/2
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Question # 16
Two parallel wires carrying currents in the opposite direction.
Choose an answer
Repel each other
Attract each other
Have no effect upon each other
They cancel out their individual magnetic fields.
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Question # 17
When back emf in motor is zero, it draws.
Choose an answer
Zero current
Minimum current
Maximum current
Steady current
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