RESISTIVE CIRCUITSHere we introduce the basic concepts and laws that are fundamental to circuit analysisLEARNING GOALS•OHM’S LAW - DEFINES THE SIMPLEST PASSIVE ELEMENT: THE RESISTOR•KIRCHHOFF’S LAWS - THE FUNDAMENTAL CIRCUIT CONSERVATION LAWS- KIRCHHOFF CURRENT (KCL) AND KIRCHHOFF VOLTAGE (KVL)•LEARN TO ANALYZE THE SIMPLEST CIRCUITS•SINGLE LOOP - THE VOLTAGE DIVIDER•SINGLE NODE-PAIR - THE CURRENT DIVIDER•SERIES/PARALLEL RESISTOR COMBINATIONS - A TECHNIQUE TO REDUCE THE COMPLEXITY OF SOME CIRCUITS•CIRCUITS WITH DEPENDENT SOURCES - (NOTHING VERY SPECIAL)•WYE - DELTA TRANSFORMATION - A TECHNIQUE TO REDUCE COMMON RESISTOR CONNECTIONS THAT ARE NEITHER SERIES NOR PARALLEL
RESISTORS)(tv)(tiA resistor is a passive element characterized by an algebraicrelation between the voltage across its terminals and the current through itResistorafor ModelGeneral))(()(tiFtvA linear resistor obeys OHM’s Law)()(tRitvThe constant, R, is called theresistance of the component and is measured in units of Ohm )(From a dimensional point of view,Ohms is a derived unit of Volt/Amp)10()10(36OhmKiloOhmMegaOhmofMultiplesStandardkMkinresistanceinresultingmAVoltisoccurrencecommonA Since the equation is algebraic,the time dependence can be omittedConductance