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Current Electricity
Which of the following material has nearly zero temperature co-efficient of resistance?
Carbon
Porcelain
Manganin
Copper
Carbon
Porcelain
Manganin
Copper
Answer
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Related Question
Current Electricity
Conductivity is the reciprocal of
Resistance
Resistivity
Current density
None of the listed here
Resistance
Resistivity
Current density
None of the listed here
Answer
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Current Electricity
Two resistances Rl and Ri are connected in series across the voltage source where Rl > Ri. The largest drop will be across
Either Rl or Ri
None of them
Ri
Rl
Either Rl or Ri
None of them
Ri
Rl
Answer
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Current Electricity
The resistance of human body is about
10 ohm
200 ohm
1000 ohm
25 ohm
10 ohm
200 ohm
1000 ohm
25 ohm
Answer
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Current Electricity
The substances which have a large number of free electrons and offer a low resistance are called
Conductors
Inductors
Semi-conductors
Insulators
Conductors
Inductors
Semi-conductors
Insulators
Answer
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Current Electricity
Specific resistance of a substance is measured in
None of the listed here
Ω-m
Ω/m
m/Ω
None of the listed here
Ω-m
Ω/m
m/Ω
Answer
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