Electricity (formulas) Flashcards
1
Q
Voltage
A
Energy/Charge = E/q = J/C
2
Q
Current
A
Charge/Time = q/t = C/s
3
Q
power
A
Ws=J
4
Q
Series Circuit
A
1) Vt= V1+V2
2) It=I1=I2
3)Rt=R1+R2
5
Q
Parallel Circuit
A
1)Vt=V1=V2
2)It=I1+I2
3)1/Rt=1/R1+1/R2
6
Q
solving for V I or R
A
V=IR
7
Q
percent efficiency
A
% Efficiency= E out(HE)/E in(EE) x100
8
Q
power
A
- P=IV
- P= E/t
9
Q
Energy
A
E=VIt
- Kwh
- Wh
-Wmin
-Ws –> j
10
Q
Europe Voltage
A
220v
11
Q
North American Voltage
A
120v
