USEFUL AC FORMULAS
PERIOD TIME (t)
FREQUENCY (f)
AVERAGE VOLTAGE OR CURRENT
EFFECTIVE VALUE OF VOLTAGE OR CURRENT
MAXIMUM VOLTAGE OR CURRENT
OHM'S LAW OF AC CIRCUIT CONTAINING ONLY RESISTANCE
L/R TIME CONSTANT (TC)
MUTUAL INDUCTANCE (M)
TOTAL INDUCTANCE (LT) Series without magnetic coupling
TOTAL INDUCTANCE (LT) PARALLEL (No magnetic coupling)
CAPACITANCE (C)
RC TIME CONSTANT (t)
TOTAL CAPACITANCE (CT) SERIES
TOTAL CAPACITANCE (CT) PARALLEL
INDUCTIVE REACTANCE (XL)
CAPACITIVE REACTANCE (XC)
IMPEDANCE (Z)
OHM'S LAW FOR REACTIVE CIRCUITS
OHM'S LAW FOR CIRCUITS CONTAINING RESISTANCE AND REACTANCE
REACTIVE POWER
APPARENT POWER
POWER FACTOR (PF)
VOLTAGE ACROSS THE SECONDARY (Es)
VOLTAGE ACROSS THE PRIMARY (Ep)
CURRENT ACROSS THE SECONDARY (Is)
CURRENT ACROSS THE PRIMARY (Ip)
TRANSFORMER EFFICIENCY
since ac is very imp unit i thought to jot down sum points n now im sharing with u all
hope it help in last days revision
plz rate for my efforts
cheers!!!
Moderation Team
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