I see, so would that mean that increasing the current shouldn't really affect the efficiency of the heater, as pretty much all of the energy should be going into the water anyway? The only problem that may arise from that was that the heater I was using was only a substitute immersion heater...
Sorry, yes it was calculated, it did change slightly but across the whole experiment it stayed at between 3.27 and 3.28 Ohms
I'm not sure if I know that one, are you reffering to P=VI?
Ahh yes ok, we didn't leave much time between increasing the voltages so the remaining heat in the heater...
Yes, the resistance was kept the same at 3.28 Ohms.
We stopped recording data after the 2 minute period, so any heating after that would not affect the results.
The other formula for power would be P=V^2/R, so does that mean that the efficiency was increased through the increase in voltage of...
Homework Statement
I'm doing an investigation for my physics class, where we were told to investigate the relationship between current flowing through and the efficiency of an immersion heater. My hypothesis was that as current increased, the efficiency would decrease due to the relationship...