Electricity Flashcards
1
Q
current
A
I = Q / T
2
Q
voltage (current)
A
V = IR
3
Q
voltage (energy)
A
V = E/Q
4
Q
power loss
A
P = I²R
5
Q
power (voltage)
A
P = IV
6
Q
energy transferred (current)
A
E = IVt
7
Q
energy transferred (power)
A
E = Pt
8
Q
resistors in series
A
R total = R 1 + R 2 + R 3 etc
9
Q
resistors in parallel
A
1 / R total = 1 / (R 1) + 1 / (R 2) + 1 / (R 3) etc
10
Q
wire resistance
A
R = (r x L) / A
note: A = πr²
