Electricity for Chemical Engineers

Interactive series–parallel resistor circuit · Current, voltage, resistance, and electron drift

Electric potential:0 VSupply voltage● electrons travel from − to +
Source voltage
12.0 V
Equivalent resistance
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Total current
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Total power
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Resistor measurements

Calculated live using Ohm's law
ComponentResistanceVoltage dropCurrentPower
Drag a resistor symbol right to increase its resistance or left to decrease it; click to highlight its control. Each stage is connected in series with other stages. Resistors inside the same stage are connected in parallel. The flow animation is illustrative: electron drift in actual metal wires is extremely slow, and an ideal circuit responds much faster than electrons drift.