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What is a current shunt?

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What is a current shunt?

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A current shunt is a high current, low resistance, resistor which is placed in series with the current flow to allow external devices to measure the current. Each current shunt will be calibrated to drop a certain voltage in relation to the current. E.g. when a 100A/50mV current shunt has 10 mV across it, then the current will be read as 20 Amps. Current shunts are only used in DC circuits.

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