View Single Post
  #17   Report Post  
Ian Stirling
 
Posts: n/a
Default

John Schmitt wrote:
On Tue, 06 Sep 2005 20:12:21 +0100, T i m wrote:

The current isn't real.


Doh!


Hmmmm. Yes and no. There is movement of electrons from one metal in a
differentially heated thermocouple to the other, so Yes there is a
current. I expect this varies with the imposed resistive load and tops out
somewhere, so meter readings may vary depending on their resistance.


Of course the meter is measuring the current in the circuit accurately,
but the measurement is not a reflection of anything useful.