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Online Tests
Ics Part 2 Physics Chapter 2 Test Online MCQs With Answers
Question # 1
Thermistor with high - ve temperature coefficient are very accurate for measuring low temperature especially near is.
Choose an answer
10 kelvin
70 kelvin
200 kelvin
35 kelvin
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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
The Kirchhoff 1
st
rule is manifestation of:
Choose an answer
Law of conservation of mass
Law of Conservation of charge
Law of conservation of energy
None of above
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Question # 4
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 # 5
A battery move a charge of 40 C around a circuit at constant rate in 20 Sec. The current will be.
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2 A
0.5 A
80 A
800 A
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Question # 6
A rheostat can be used as variable resistor as well as a-------------
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Potential divider
Current divider
Wheat stone bridge
Power divider
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Question # 7
Two resistance of 2 Ohm each are connected in parallel combination equivalent resistance will be.
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4 Ohm
2 Ohm
1 Ohm
8 Ohm
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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 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:
Choose an answer
1
:2
2
:1
1
:3
4
:3
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Question # 10
A wire uniform cross-section. A length L and resistance R is cut into two equal parts. The resistivity of each part will be:
Choose an answer
Doubled
Halved
Remain the same
One fourth
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Question # 11
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 # 12
Semiconductor diodes are called:
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Ohmic
non ohmic
Both a & b
none of above
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Question # 13
Magnetic effect of current is used
Choose an answer
To detect a current
To measure a current
In electric motor
All of above
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Question # 14
If there is no fourth band, tolerance is shows as
Choose an answer
10%
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Question # 15
The current through a resistance of 100 Ohm when connecting across a source of 220 V is.
Choose an answer
22000 A
22 A
2.2 A
0.45 A
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Question # 16
Terminal potential difference is greater than emf of the cell when
Choose an answer
Circuit is open
Circuit is closed
small battery is charged by bigger battery
None of these
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Question # 17
Drift velocity of electrons is.
Choose an answer
10
-1
m/s
10
-2
m/s
10
-3
m/s
10
3
m/s
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