Last Updated On 16-03-2023 - By Jeesha Sara
Constantan wire is used in making standard resistances because its
a)
Specific resistance is low
b)
Density is high
c)
Temperature coefficient of resistance is negligible
d)
Melting point is high
Constantan wire is used in making standard resistances because its
a)
Specific resistance is low
b)
Density is high
c)
Temperature coefficient of resistance is negligible
d)
Melting point is high
Question ID - 150314 :-
Constantan wire is used in making standard resistances because its
a)
Specific resistance is low
b)
Density is high
c)
Temperature coefficient of resistance is negligible
d)
Melting point is high
|
Constantan wire is used in making standard resistances because its |
|
|
a) |
Specific resistance is low |
|
b) |
Density is high |
|
c) |
Temperature coefficient of resistance is negligible |
|
d) |
Melting point is high |
|
(c) Due to the negligible temperature co-efficient of resistance of constantan wire, there is no change in it’s resistance value with change in temperature |
Next Question :
|
For a given thermocouple neutral temperature |
|||
|
a) |
Is a constant |
b) |
Depends on cold junction temperature |
|
c) |
Depends on inversion temperature |
d) |
Double that of cold junction temperature |
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