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Kirchhoff ’s laws

Lektion Progression

Kirchhoff ’s laws

At any junction, or node, in an electrical circuit, the sum of the currents flowing into the node is equal to the sum of the currents flowing out of the node.

This is the same as saying that charge can neither be stored at, nor dispensed from, these nodes. This is a useful rule of thumb – it helps when thinking about problems to be able to distinguish between places where energy can and cannot be stored.