Transcription of Basic circuit analysis - City U
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Basic circuit analysis - City U
Prof. Tse: Basic CircuitAnalysis1 EIE209 Basic ElectronicsBasic circuit analysisProf. Tse: Basic CircuitAnalysis2 Fundamental quantities Voltage potential difference bet. 2 points across quantity analogous to pressure between two points current flow of charge through a material through quantity analogous to fluid flowing along a pipeProf. Tse: Basic CircuitAnalysis3 Units of measurementnVoltage: volt (V)nCurrent: ampere (A)nNOT Volt, Ampere!!Prof. Tse: Basic CircuitAnalysis4 Power and energyWork done in moving a charge dq from A toB having a potential difference of V isW = V dqPower is work done per unit time, ,ABdqProf.
Mesh analysis Step 1: Define meshes and unknowns Each window is a mesh. Here, we have two meshes. For each one, we “imagine” a current circulating around it. So, we have two such currents, I1 and I2 — unknowns to be found. Step 2: Set up KVL equations Step 3: Simplify and solve which gives I1 = 6 A and I2 = 4 A. Once we know the mesh ...
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