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I just had a general question for solving for an unknown current(s) in single or multi-loops circuits. How exactly do we know how many arbitrary currents we need to define for solving the for the currents in the circuit? do we define a current for each loop that is present? for each voltage source? this always confuses me when i'm solving problems like these. any help is appreciated.

thanks

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# Homework Help: Defining current in a circuit

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