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How do you analyze a circuit with resistors in series and parallel configurations?
With the Break It Down-Build It Up MethodIn
This video we solve a combination series and parallel resistive circuit problem for the voltage across, current through and power dissipated by the circuit’s resistors.We redraw the circuit in linear form to more easily identify series and parallel relationships. Then we combine resistors using equivalent resistance equations.
After redrawing several times we end up with a single resistor representing the equivalent resistance of the circuit. We then apply Ohm’s Law to this simple (or rather simplified) circuit and determine the circuit current (I-0 in the videoRetracing our redraws, we determine the voltage across and current through each resistor in the circuit using Ohm’s Law.
After tabulating our solutions we determine the power dissipated by each resistor.

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