Diode Current Equation Ideal Diode PIN Diode Darlington Transistor PNP Transistor NPN Transistor Transistor Working Principle BJT as Switch Applications of BJT DIAC TRIAC Types of Transistors Transistor Characteristics Transistor Manufacturing Techniques Transistor as an Amplifier Phototransistors Current Components in a Transistor White Light Emitting Diode LED Work LED JFET Characteristics Electric transmission Transmission Lines Parameters、Types 、 Theory Short Transmission Line Medium Transmission Line Long Transmission Line Admittance ABCD Parameters Ferranti Effect Ring network Power Distribution Systems Electrical Isolation Switch Power Systems Frequency Skin Effect in Transmission Lines Thermal Power Plant Economiser Thermal Power Generation Diesel Power Plant Photovoltaic Power Plants Power Transmission Systems Hydro Power Plant Economics of Power Generation Electric Supply System Electrical Conductors Thermistor RTD Thermocouple Thermoelectric Power Generators Carnot Cycle Thomson Effect