Electromagnetism Notes

Physics

#Electromagnetism #ElectricalEngineering #Electricity #PhysicalQuantities #ElectricalResistanceAndConductance #EnergyStorage #Electrodynamics #ElectronicEngineering #Capacitor #ElectricalImpedance #Inductor #ElectricalReactance

42 Pages • Complete Study Notes • Year Uploaded: 2022

4.1.2 Power in AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4.1.3 The RMS value of AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 4.2 Capacitors in AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 4.2.1 Voltage and current within the capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 4.2.2 Factors affecting the reactance of a capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 4.2.3 Phase relationiships in a capacitor-resistor circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 31 4.2.4 Voltage relationship between the potential difference of the capacitor, resistor and the supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 4.2.5 Current phase relationship . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 4.2.6 Impedance of an RC circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 4.3 Inductors in AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 4.3.1 Voltage and current in an inductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 4.3.2 Factors affecting te reactance of an inductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 4.3.3 The phase relationship between VL and VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 4.3.4 Impedance of an LR circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 4.4 LCR series circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 4.4.1 Resonance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

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