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Online Tests
Physics Fsc Part 2 Chapter 2 Online Test MCQs With Answers
Question # 1
If the resistance of 500 Ohm have fourth band of silver colour then its upper maximum resistance will be.
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600 Ohm
550 Ohm
450 Ohm
400 Ohm
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Question # 2
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 # 3
The unit of temperature co efficient of resistivity is.
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Ohm -m
K-1
K
Ohm
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Question # 4
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 # 5
Heat generated by a 40 W bulb in one hour is.
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140 J
1440 J
14400 J
144000 J
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Question # 6
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 # 7
The free electrons experience force.
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In direction of -E
In direction of E
Both A and B
All of the above
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Question # 8
Seven resistances are connected as shown in the figures . THe equivalent resistance between A and B is:
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3Ω
4Ω
4.5Ω
5Ω
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Question # 9
The product of resistance and conductance is
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1
Resistivity
Conductance
Zero
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Question # 10
The reciprocal of resistance is called.
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Capacitance
Resistance
Conductance
Inductance
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Question # 11
Colour codes are used to calculate the.
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Nature of resistor
Numerical value of resistance
Potential difference
Current
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Question # 12
The value of maximum output power is?
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E/4R
E
2
/4R
E/4R
2
Non of above
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Question # 13
In gas the charge carriers are:
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Electrons
Ions
Both a & b
None of above
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Question # 14
Magnetic effect of current is used in.
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Toaster
Electric iron
Electric motor
D.C. Battery
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Question # 15
mho -m-1 is the unit of.
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Resistance
Resistivity
Conductance
Conductivity
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Question # 16
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 # 17
A certain wire has a resistance R, the resistivity of an other wire of an identical material with the first, except for twice its diameter is.
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1/4 R
4R
2R
Same as R
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Question # 18
Tolerance of "Gold" band.
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±10%
±5%
±15%
±20%
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