=1 =harge
current-rate Con s
of flow of charged particles ,
voltage transferred unit
chargeV = merge,
-
energy per
resistance how difficult it is
R=
-
measure of for charge
=
carriers to pass through a
component m
Kirchoff's first
& current into
law-conservation
junction
=
Ecurrent out
of
of
charge
junction
FI
Kirchoff's second law -
conservation of energy
& E = EV (sum of battery voltage
=
sum of voltages in a series circuit)
series :
parallel :
·
current same
everywhere
·
Ecurrent in each branch = total
o
pd shared across elements opd across each branch is the same
[resistance
· +
· =
R ,
+
R2 + ...
+ ...
power-rate transfer of
P =
V - p =
12
of
energy
W
- p =
transferred : W = IVE
energy /
ohm's law &
potential difference
-
current -
Vu
semiconductor bul Ehermistor
filament
ohmic
conductor diode
"Y
,
-
M
- - . .