Posted by **rosa** on Thursday, November 14, 2013 at 10:15pm.

A metal wire has a resistance of 8 ohm at a temperature of 20 degree celcius . If the same wire has a resistance of 8.40 ohm at 70 degree celcius , what is the resistance of this wire in ohms when its temperature is -10 degree celcius ?

- physics -
**rosa**, Thursday, November 14, 2013 at 10:31pm
sorry I did it

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