Circuits and Circuit Elements Complex Resistor Combinations

Resistors Combined in Both Parallel and in Series Fuse – an electrical device containing a metal strip that melts when current in the circuit becomes too great Used to prevent overload Circuit breaker – a device that protects a circuit from current overloads Trip when the current overloads Acts like a switch

Resistors Combined Both in Parallel and in Series Complex circuits have resistors arranged both in series and in parallel You must simplify the groups of resistors Work with a small group that is all in series or in parallel After you have simplified the small groups, start combining groups until you have “created” a de facto simple circuit and can find the equivalent resistance for the circuit Work backward to find current or potential difference

Resistors Combined Both in Parallel and in Series

Resistors Combined Both in Parallel and in Series