Engineering Equations Flashcards
1
Q
Resistance (R)
A
R = V/I 12/5.2 = R = 2.26
2
Q
Inductive Reactance
A
XL = 2πfL XL = 2π×50×24.4 XL = 7665.48Ω
3
Q
Impedance (Z)
A
Z = √R2 + XL2 Z = √2.262 + 7665.482 Z = 7665.48Ω
4
Q
Power Factor (P.F)
A
P.F = Cos-1(R⁄Z) P.F = Cos-1(2.26⁄7665.48) P.F = 3.49×10-4J
5
Q
Inductance
A
24.4W ⇒ 24.4 H
6
Q
Apparent Power
A
S = VI S = 12 × 5.3 S = 63.6J
7
Q
Current Supplied
A
I = V⁄Z I = 12⁄7665.48 I = 1.56×10-3A
8
Q
Real Power
A
Cos = R⁄Z Cos-1(2.26⁄7665.48) Y = Cos-1(2.95×10-4) Y =89.98° P = IVCos P = 5.3×12×2.95×10-4 P = 0.019W
9
Q
Reacture Power IR
A
IR = ISinY IR = 5.3×Sin(89.98) IR = 5.3A
10
Q
Reactive Power = VI reactive
A
RP = V×IR RP = 12×5.3 RP = 63.6 VA
