Asked by SIDDHARTHA
If a Wire Resistance is 10 ohm at 0 DegC and the same wire Resistance becomes 15 ohm at temperature 100 DegC, then at what temperature the wire Resistance will be 30 ohm? Temperature coefficient of the wire material is 0.0047.
Answers
Answered by
bobpursley
resistance=Ro(1+.0047T)
Ro=10 ohm, given
check:
R@100=10(1+.0047*100)=10(1+.45)=15ohm
30=10(1+.0047T)
3=1+.0047T
T=2/.0047=426C
Ro=10 ohm, given
check:
R@100=10(1+.0047*100)=10(1+.45)=15ohm
30=10(1+.0047T)
3=1+.0047T
T=2/.0047=426C
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