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Online Tests
Ics Part 2 Physics Test Online MCQs With Answers
Question # 1
A step up transformer is used 120 V line to provide 240 V. If primary coil has 100 turns the number of turns is secondary is.
Choose an answer
50
100
150
200
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Question # 2
The SI unit of relative permittivity is.
Choose an answer
Fm-1
C2N-1m-2
Nm2C-2
No unit
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Question # 3
When a nucleus emits alpha particle its atomic mass decreases by
Choose an answer
1
2
3
4
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Question # 4
The photoelectric effect predicts that light is made of
Choose an answer
Photons
Neutrons
Protons
None of these
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Question # 5
The quantity time constant RC has units of.
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Charge
Time
Capacitance
Resistance
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Question # 6
What is the co-efficient of mutual inductance, when the magnetic flux changes by 2 x 10
-2
Wb, and change in current is 0.01 A?
Choose an answer
2 H
3 H
1/2 H
Zero
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Question # 7
The thermistors convert changes of temperature into.
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Light energy
Electric voltage
Heat
Sound
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Question # 8
Radioactivity happen due to the disintegration of
Choose an answer
Nucleus
Mass
Electrons
Protons
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Question # 9
The middle region of electric field is:
Choose an answer
Maximum field spot
Zero field spot
Perpendicular field spot
All of above
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Question # 10
the current which flows from a point at higher. potential to point at lower potential is called.
Choose an answer
Electric current
Conventional current
Either of these
None of above
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Question # 11
Pulsating output of full wave rectifier can be made smooth by using circuit called.
Choose an answer
Filter
Amplifier
Resistor
Transistor
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Question # 12
In self induction A coil is connected in__________ with battery and a rheostat.
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Parallel
Series
Both A and B
None of above
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Question # 13
The background radiation to which we are exposed, on the average is.
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1 mSv per year
2 mSv per year
3 mSv per year
4 mSv per year
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Question # 14
Natural rubber is an example of:
Choose an answer
Crystalline solids
Amorphous solids
Polymeric solids
None of above
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Question # 15
If we make magnetic field stronger the value of induced current is.
Choose an answer
Decreased
Increased
Vanishes
Remain constant
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Question # 16
Alpha particle carries a charge.
Choose an answer
-e
+2e
-2e
No charge
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Question # 17
The unit of permiability of free space is:
Choose an answer
T.m/A
T.m
2
/A
T.m/A
2
None of these
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Question # 18
In case of op-amp as an inverting amplifier, V
+
- V
-
= 0, this is because
Choose an answer
Open gain loop is very low
Closed loop gain is very high
Open loop gain is very high
Both (a) and (a)
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