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Physics ICS Part 2 Chapter 13 Online MCQ's Test MCQs With Answers
Question # 1
Heat sensitive resistors are called.
Choose an answer
resistors
Capacitor
Thermistors
Inductors
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Question # 2
Three resistors of resistance R each are combined in various ways, Which of the following cannot be obtained?
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3 RΩ
2R /4Ω
R/3Ω
2R /3Ω
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Question # 3
mho -m-1 is the unit of.
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Resistance
Resistivity
Conductance
Conductivity
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Question # 4
Which one of the following bulbs has the least resistance.
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100 W
200 W
500 W
1000 W
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Question # 5
Tolerance of "Gold" band.
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±10%
±5%
±15%
±20%
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Question # 6
The Kirchhoff 1
st
rule is manifestation of:
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Law of conservation of mass
Law of Conservation of charge
Law of conservation of energy
None of above
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Question # 7
5 A of current flows through a conductor in 2 minutes, charge in the wire is.
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500 C
600 C
400 C
10 C
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Question # 8
When a wire of length 'l' and resistance R is cut into two equal parts then resistivity of each part.
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is doubled
Remains the same
Is halved
Is one fourth
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Question # 9
Thermistor with high - ve temperature coefficient are very accurate for measuring low temperature especially near is.
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10 kelvin
70 kelvin
200 kelvin
35 kelvin
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Question # 10
Semiconductor diodes are called:
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Ohmic
non ohmic
Both a & b
none of above
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Question # 11
Calculate current in 2 2R /4Ω resistor.
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1 A
2R /4Ω
R/3Ω
2R /3Ω
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Question # 12
By increasing the temperature of conductor, the flow rate of charges.
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Increase
Remains constant
Decreases
Changes exponentially
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Question # 13
The heat produced by passage of current.
Choose an answer
H=I
2
Rt
H=IR2T
H=I/Rt
H=I
2
/Rt
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