AQA GCSE Physics Module 2 Electricity - summative mind-map
This document serves as a multipurpose tool to aid your GCSE revision, made by a Grade 9 student. It contains elaborate details of the module, including key learning points from the AQA specification and a profile of all RPAs from this m...
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W
Ra
Ra R2 Electrical field between two opposite Electrical field between two parallel plates -
follows W
charges with opposite charges
The total resistance is the sum of Ohm's Law
resistor R2
the resistance ofeach
.
At a constant temperature, current
The total resistance is lower than through an ohmic conductor is directly
the smallest individual resistor.
proportional to potential difference
ELECTRICITY
(alternating current)
& a C supply electrons constantly change direction >
-
F
-
. .
-
↑
d C supply -
> electrons move in the same direction
↓
. .
-
(direct current) UK Mains supply is a C
. .
& ↳
p d
. .
=
24OV
frequency =
50thz
T
-
THE UKPLUG : EARTH wire
E
↳ current only flows
through
there is a
[
if faultin the
NEUTRALwire
8
i
·
appliance
2 own
-O
Y ↳ OV : stops
appliance casing -up
former c
completes the
ouer
transformer
↳
&
D
m
I
& *
u
-
an-
station
circuit (route for the becoming live (safety E
a c . . current) area -
a
↑ -
↑
-&
FUSE -
> melts if current
P S S
E
↳ at or close to earth - me
potential go LIVE wine " high
The National Grid is a
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