Author: Ganesh Takale

Single Phase and Three Phase Wiring 1. Single Phase Wiring Single phase wiring is commonly used in homes, small shops and small electrical loads. Main wires: Phase (L) – carries electrical supply Neutral (N) – completes the...

Basic Electrical Information QuantitySymbolUnitBasic formulaVoltageVVolt (V)V = I × RCurrentIAmpere (A)I = V ÷ RResistanceROhm (Ω)R = V ÷ IPowerPWatt (W)P = V × IEnergyEWh / kWhE = P × timeFrequencyfHertz (Hz)AC supply frequency...

AC and DC AC — Alternating Current The current changes direction periodically. Commonly used for homes, buildings, and power distribution. In India, household supply is typically 230 V, 50 Hz AC. Example: wall sockets, fans,...