Electricity Flashcards
Current formula (with charge)
Current = Charge / Time
Voltage formula (with charge)
Voltage = Energy transferred / Charge
Voltage formula
Voltage = Current x Resistance
Power formula (with voltage)
P = IV (Poison ivy)
Power = Current x Voltage
Power formula (with resistance)
Power = Current^2 x Resistance
Energy transferred formula
Energy transferred = power x time
(please note that power can be replaced by current x voltage)
Total resistance in series circuit formula
Total resistance in series = R1 + R2
Total resistance in parallel circuit formula
1 / R1 + 1 / R2 = 1 / R(total)
Transformers formula
Voltage in primary coil / Voltage in secondary coil
Number of turns in primary coil / number of turns in secondary coil
Transformers formula power
Power of primary coil = Power of secondary coil