lew (01/22/83)
When I was a TA for freshman physics at Lehigh U., I worked out the I-V characteristic for a light bulb based on the assumptions R=T and P = I*V = T^4. This gives I*V = ((V/I)^4 or I^5 = V^3. It was a student assignment to measure this characteristic, so I had lots of data available. I plotted log I vs. log V and found the slope to be .586, which compares favorably to the predicted value of .6 -- and the line was nice and straight too. This indirectly verifies the validity of the R=T relation over a temperature range of (T1/T0) = 2.5 , corresponding to a voltage range of from 1 to 10 volts (use V^2=T^5). Lew Mammel, Jr. ihuxr!lew