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I've been using a Hall generator to generate a particular magnetic field by applying a current. I need to work out what field this corresponds to in Tesla. All I have to go on is what's in the photo included. This says it's open circuit which I don't understand in terms of how there can be a non-zero current with no resistance. How do I translate this?enter image description here

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  • $\begingroup$ 1 tesla = 10,000 gauss and possibly the voltage was measured without drawing current from the device. Could be a potentiometer type circuit? $\endgroup$ – Farcher May 30 '18 at 9:03
  • $\begingroup$ Well we applied a current of 20A to the system and I'm not sure how this converts to a magnetic field. $\endgroup$ – JJH May 30 '18 at 9:36
  • $\begingroup$ I thought that it might be referring to the voltage measurement? $\endgroup$ – Farcher May 30 '18 at 9:40
  • $\begingroup$ Well if there is no resistance in the system because it's an open I'm not sure how I can convert amps to volts. $\endgroup$ – JJH May 30 '18 at 9:49
  • $\begingroup$ I assumed that it was of this type? $\endgroup$ – Farcher May 30 '18 at 10:05

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