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Constantan Resistivity
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Could you please tell me the resistivity of constantan?
John Langdon- Notting Hill, London, England
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Constantan's electrical resistivity is 300 Ohms/Circular Mil-Foot, compared to 10.7 Ohms/CMF for 99.99% copper
Joe RosolOrbital Sciences Corp. - Greenbelt, Maryland, USA
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In English please in OhmMetres would be nice! Thanks :-)
Graham McMaster- England
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Try goodfellow on the internet. It gives all the figures (inc. resistivity) for various materials inc. constantan.
J Smith- London, Britain
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1337 m8 $3x0r p0$7 |>u|>3. I 0w|\| j00 A11 u p30|\|s
Graham BalharriePhysics - Maidenhead, Berks, UK
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Ed. note: It appears that Graham was using a scientific keyboard and special text encoding that did not survive the trip across the world wide web.
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The resistivity of constantan is 4.9*10^-7
Mohammed A [last name deleted for privacy by Editor]
Student - England
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4.9 x 10^-7
Paul [last name deleted for privacy by Editor]
- Chicago, Illinois, USA
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52*10^-8 Ohm meters
I also saw the 49*10^-8 but this said it was "constantan (eureka)"
- Kent, England, UK
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Ed. note: Your number differs by 6 percent, Nathan, so it's not a terrible correlation.
December 2, 2010
Found experimentally constantan resistivity to be 4.9*10^(-7) so it is correct!
bob richard- Paris France