SUMMARY

Monday, 13 August 2018

12:18 PM

Machine generated alternative text: Topic 2 recap • Resistance R is a physical property of a circuit element that impedes the flow of charge. It is measured in ohms, Q. • Ohm's Law establishes the relationship between the voltage across a resistive element (called resistor) and the current through it: v = Ri • Short circuit: R = 00 v = Ri = O. Open circuit: R = 000 i = E— O. 1 • Conductance G = • Power dissipation on resistor: p = Ri2 = • Kirchhoffs Current Law (KCL): The sum of all current entering and leaving a node is zero in — • Kirchhoffs Voltage Law (KVL): The sum of all voltages in a loop is zero vm — -o. Ohm's Law, KCL, and KVL can be applied to analyse any linear circuit. 2

 

Machine generated alternative text: Topic 2 recap • • • Resistors in senes- R Resistors in parallel: • . eq = RI R 2 + R eq RN Circuits can be simplified by finding the equivalent resistance from a given terminal. Voltage division: tin = V RI R2 •••+R Current division: . RI llR211 IIRN RN eq eq RI ibi RN

 

 

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