P4 Flashcards
1
Q
Charge flow
A
Q=It
Q=charge flow (C)
I=current (A)
t=time (s)
2
Q
Potential difference
A
V=IR
V=potential difference/volts
I=current (A)
R=resistance (Ω)
3
Q
Energy transferred
A
E=Pt
P=power (W)
t=time (s)
4
Q
Energy transferred (with potential difference)
A
E=QV
Q=charge flow
V=potential difference
5
Q
Power (with current)
A
P=VI
V=potential difference
I=current
6
Q
Power (with resistance)
A
P=I*2R
7
Q
Potential difference at home
A
230 V
8
Q
Hz
A
50hz
