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Online Tests
Ics Part 2 Physics Chapter 2 Test Online MCQs With Answers
Question # 1
If a charge Q flows through any cross section of the conductor in time t, the current I is
Choose an answer
I=Qt
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Question # 2
During electrolysis process, density of CuSO
4
solution
Choose an answer
Remains constant
Decreased
Increased
None of these
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Question # 3
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 # 4
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 # 5
Calculate current in 2 2R /4Ω resistor.
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1 A
2R /4Ω
R/3Ω
2R /3Ω
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Question # 6
The resistivity of --------------------decrease with the increase in temp
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Gold
Silver
Copper
Silicon
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Question # 7
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 # 8
The thermistors convert changes of temperature into.
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Light energy
Electric voltage
Heat
Sound
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Question # 9
The color code of "Green"
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8
3
5
7
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Question # 10
The unit of conductivity is:
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Ohm
-3
m
-1
Ohm m
-1
Both a and b
Ohm m
-1
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Question # 11
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 # 12
The unit of resistance is:
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Ω
Ωm
Ω
-1
m
-1
Ωm
-1
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Question # 13
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 # 14
In carbon resistors, then value of Blue colour is.
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6
7
8
9
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Question # 15
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 # 16
Potentiometer is used to.
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Compare emf of two cells
Detect internal resistance of cell
Measure P.D.
All of these
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Question # 17
Semiconductor diodes are called:
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Ohmic
non ohmic
Both a & b
none of above
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Question # 18
Electric power:
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Vx1
V
2
x1
V/1
V/1
2
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