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RE: B&K 747B calibration clarification

Even 1/2 watt is overkill.

Given P=V^2/R, a 100M resistor would dissipate under 1/2 watt up to around 7,000v (which I'm sure is way over the voltage rating of any resistor).

5W would get you up around 22kv (ouch)

Digikey has some 1/4 watt 100M resistors at around $3-

- Gary





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