AS complete course summary notes. Formula, definitions, diagrams.

Chapter 1 .




Conduction of electricity
current -



How of charge .




ftp.D.applied-arried by electrons .




(a
'
electrons )
'
→ sea

flow in 1
direction

Charge -
tells how is
us + or -

an object

\
Make Add electrons
more
negative → more
-
-




-
Make more positive → Remove -

electrons


① of
→To
an electron =
-1.6×10
-
la calc no .
electrons

1. 6×10-19
1A 1C s
per
=


1A =
IC5
'




- Always label
symbols

←Assess what
equation
best .
is




maths
-simple
.




REMEMBER
- UNITS

,Potential Difference PD .




Energy converted from electrical
in
potential to other forms per C
V parallel
of charge flowing . always .




V in series adds to
V.
give supply



Charge (c)
Energy
dissipated PD G)
→W ←
.




=

(5)

1 LEARN
in data
THESE

Q
not
W = Itv = It booklet
f f
current
(A) Ff←¥mIe%¥YÉnot mins /hrs
.




Find suitable
+ equation
-Remember
Units
-
wide choice
of formulas

, Resistance
The resistance of
conductor
a is the
P.D. placed across it divided by
it
by the resulting current
through

→
R = ✓ ← P.D.CH
-


Resistance
I Current (A)
(d) -




⑤
↳ 1- R is

produces
Oum 's
present if
a


law
a


current
p.de
of
of
1A
IV
.




V a I when temp is
constant .




Remember Units
←
.




Adapt to
previx

✓
.




* Use data book#