Phsyics 2015 Content-led Approach Based On The Salters Horners Advanced Physics Project
Unit 6 - Digging up the Past
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physics notes Unit 6 - Digging up the Past (DIG) AKA electric fields and further mechanics
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Unit 6 - Digging up the Past
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PEARSON (PEARSON)
these are my notes on Unit 6 - Digging up the Past (DIG) AKA electric fields and further mechanics
well written and laid out
i am predicted an A* in a level physics
compatible with edexcel a level or AS level physics students
Phsyics 2015 Content-led approach based on the Salters Horners Advanced Physics Project
Unit 6 - Digging up the Past
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,
, Resistivity
RESISTANCE opposition to flow of current
#
#
Rx(
7
(2
--
①Q # ⑦ &
-
-
1 R
R
=
2) [r] [m]
[m] &
A [m2]
--
*
P =
resistivity of
a material : -m
A better ·
constant per material
conductor
= lower
resistivity measure of resistance
·
of a material
,
independent of the
volume
FACTORS AFFECTING RESISTIVITY
Of A WIRE :
·
length of wire
o cross-sectional area
Rel
o thickness / width
material
A
o
type of
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