• on Education & Information
  • Published in issue 7/2006 on page 0
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Multimeter as Lightning Detector


Multimeter as Lightning Detector
Most digital multimeters have a sensitivity of 200 mV and in input impedance of 10 MOhm. With this information you can calculate that at full scale there will be a current of 20 nA (nano-ampères). In reality you have a very sensitive ammeter in your hand.
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