Mathematical Formulas Flashcards
1
Q
Ohm’s Law
A
E = IR E = Energy (Volts, V) I = Current (Amperes, A) R = Resistance (Ohms)
2
Q
Work Formula 1
A
W = Fl W = Work (Joules, J) F = Force (Newtons, N) L = Length (meters)
3
Q
Work Formula 2
A
W = P x t W = Work (Joules, J) P= Power (Watts, W) t = Time (seconds, sec)
5
Q
Power Formula
A
P = EI P = Power (Watts, W) E = Energy (Volts, V) I = Current (Ampere, A)
6
Q
Power Consumption Formula
A
Power in = Power out + Power loss
7
Q
Efficiency % Formula
A
Efficiency (%) = (Power out/ Power in) x 100
8
Q
Charge Equation
A
Q = It Q = Charge (coulombs, C) I = Current (Ampere, A) t = Time (seconds, sec)
