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Physics FSC Part 2 Chapter 13 Online MCQ's Test MCQs With Answers
Question # 1
When a wire is stretched and its radius becomes r/2, then its resistance will be
Choose an answer
16 R
4 R
2R
0
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Question # 2
Ampere second stands for the unit of.
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Charge
emf
energy
Power
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Question # 3
Electric power:
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Vx1
V
2
x1
V/1
V/1
2
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Question # 4
The color code of "Green"
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8
3
5
7
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Question # 5
Tolerance of "Gold" band.
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±10%
±5%
±15%
±20%
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Question # 6
In gas the charge carriers are:
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Electrons
Ions
Both a & b
None of above
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Question # 7
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 # 8
Terminal potential difference is greater than emf of the cell when
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Circuit is open
Circuit is closed
small battery is charged by bigger battery
None of these
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Question # 9
106 electrons are moving through a wire per second the current developed is:
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1.6 x 10-19 A
1 A
1.6 x 10-13A
106 A
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Question # 10
A substance having the negative temperature co efficient of resistivity out of the following is.
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Carbon
Iron
Tungsten
Gold
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Question # 11
In carbon resistors, then value of Blue colour is.
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6
7
8
9
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Question # 12
The resistivity of --------------------decrease with the increase in temp
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Gold
Silver
Copper
Silicon
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Question # 13
Heat energy is converted into electrical energy.
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Solar cells
thermocouples
Electric generators
None of above
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Question # 14
Heat sensitive resistors are called.
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resistors
Capacitor
Thermistors
Inductors
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Question # 15
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 # 16
e.m.f is the conversion of --------------- energy into electrical energy
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Chemical
Solar
Light
None of these
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Question # 17
the current which flows from a point at higher. potential to point at lower potential is called.
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Electric current
Conventional current
Either of these
None of above
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Question # 18
A charged conductor has charge on its.
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Inner surface
Outer surface
Middle surface
Surrounding space
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