these are my notes i took throughout my lessons on Unit 5 - Technology in Space AKA: Thermodynamics
Edexcel a level physics
AS and A level content
well written and laid-out notes
I am predicted an A* in A level Physics
, Charge ⑨
IC of 88
change X-oelection
&
charge = -I
⑧ .
x10-19 C
Each has amount of
charge
·
electron a certain
e= electron
charge
= -1 .
602410 G We
XC of the
In
charge
·
number of electrons = =
6
.
24x1018 electron
1 602x10-19
.
3
= total
N Q
charge
=
e =
electron charge
N = number of electrons
Current
3
Voltage
T
The
= rate of flow of charge
er I
= ↳
&
related to speed Energy per
of charge
-
VOLTAGE S unit charge
Kirchoffs 2nd Law
The total The total
117
T
To voltage in out
voltage
X [vin (In one
Loopt
toot Evout loop-root
I v2
I -
R
, current in a lamp
S mar
is is t Sua = 8x103A
current obtained ?
G
** >
-
4C in 500s 41500 =
8x103A =
But
DEFINITIONS
CURRENT is rate of flow of
the charge
Ill---- current k
Ti
I AMMETER
&
measured with an
connected in series
W
&
1
electron
&
flow
VOLTAGE is the clone
work per unit charge
↓
measured with a VOLTMETER
connected in parallel
RESISTANCE is the opposition to current
, rchoff's 1st Law
-
↳
current in series + paralles circuits :
QJUNCTION -O ]
·a ↳ less
resistance
& Fin =
[Tou -
(at the junction
eg
. JTlT
1 s
Al
-E
i Lo
·
S J
A2
As
&
Az = 3A A4 9 A=
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