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Online Tests
Physics Fsc Part 2 Chapter 2 Online Test MCQs With Answers
Question # 1
When a pot difference of 4 volt is applied across resistance, 10 J of energy is converted Find charge flows
Choose an answer
0.20 C
2.5 C
5.0 C
10.0 C
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Question # 2
The unit of temperature co efficient of resistivity is.
Choose an answer
Ohm -m
K-1
K
Ohm
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Question # 3
During electrolysis process, density of CuSO
4
solution
Choose an answer
Remains constant
Decreased
Increased
None of these
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Question # 4
Semiconductor diodes are called:
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Ohmic
non ohmic
Both a & b
none of above
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Question # 5
Electric power:
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Vx1
V
2
x1
V/1
V/1
2
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Question # 6
The thermistors convert changes of temperature into.
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Light energy
Electric voltage
Heat
Sound
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Question # 7
The condition for the wheatstone bridge to be balanced is given by
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None of above
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Question # 8
The powers of two electric bulbs are 100w and 200w. Which are connected to power supply of 220 V. The ratio of resistance of their filament will be:
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1
:2
2
:1
1
:3
4
:3
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Question # 9
What is the resistance of carbon resistor which has band brown black brown.
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100 Ohm
1000 Ohm
10 Ohm
1.0 Ohm
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Question # 10
When a wire is stretched and its radius becomes r/2, then its resistance will be
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16 R
4 R
2R
0
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Question # 11
For ohmic device the graph between V and I is.
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A straight line
Curve
Hyperbola
Parabola
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Question # 12
The unit of resistance is:
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Ω
Ωm
Ω
-1
m
-1
Ωm
-1
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Question # 13
A rheostat can operate as.
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Amplifier
Potential divider
Oscillator
Transformer
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Question # 14
The heat produced by passage of current.
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H=I
2
Rt
H=IR2T
H=I/Rt
H=I
2
/Rt
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Question # 15
The reciprocal of resistance is called.
Choose an answer
Capacitance
Resistance
Conductance
Inductance
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Question # 16
The product of resistance and conductance is
Choose an answer
1
Resistivity
Conductance
Zero
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Question # 17
The unit of conductivity is:
Choose an answer
Ohm
-3
m
-1
Ohm m
-1
Both a and b
Ohm m
-1
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Question # 18
Seven resistances are connected as shown in the figures . THe equivalent resistance between A and B is:
Choose an answer
3Ω
4Ω
4.5Ω
5Ω
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