Question

what are the conservention regarding the flow of current?

Answer 1

The principle of conservation of electric charge implies that: At any node (junction) in an electrical circuit, the sum of currents flowing into that node is equal to the sum of currents flowing out of that node. The algebraic sum of currents in a network of conductors meeting at a point is zero.

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Answer 2

Conservation of currentKirchhoff's law is an attempt to model a physical process that adheres to the principle of conservation of energy. Current is time rate of energy flow, and so the integral of current must also observe this principle of conservation of energy. 1.) sum of the currents into any node must sum to zero.