Tuesday, May 18, 2010


A DC circuit consists of a constant power source, a constant current and contains resistors.

Series Circuit

A series circuit consists of more than one resistor in series and a source of power. In this kind of circuit the current through each resistor is equal, and the voltage through each is constant, and if each resistors has equal resistance the voltage is slpit evenly with each resistor.

Parrellel Circuit

A parrellel Circuit consists of  resistors providing multiple pathways for electrons to flow through. The equivalent resistance in this type of circuit decreases as new resistors are added, but the voltage through each stays the same as the power source's.

Complex Circuit

A complex circuit consists of a combination of a series and parrelel circuit. The same things that apply to series and parrell circuits aply to complex but in certain combinations.


  1. Good job with your diagrams but there are several inaccuracies in your explanations:
    - the battery is an energy source not a power source
    - voltage does not go "through" a circuit, voltage is always across an element. Remember that another word for voltage is potential difference.
    You were required to explain how current and voltage work in each circuit. The explanations are either incorrect or missing in the parallel (not 'parrellel') and the complex circuits.
    Please be sure to review these concepts as they are a major part of the final exam!

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