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PH106 Resistors

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by

Richard Datwyler

on 24 January 2017

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Transcript of PH106 Resistors

Resistors
Resistance limits the amount of current flowing through a wire from a supplied voltage. We learn this from Ohm's law. And we also know it is a property of the conductor.

When put into a circuit we need to know how more than one resistor is placed to find a total effective resistance. There are two main options:
SERIES
In series
In parallel
Resistance add linearly.
Potential is different.
Current is the same through each.
R
R
R
R
1
2
3
eff
Parallel
Resistance add inversely.
Current is different.
Potential is the same through each.
R
R
R
R
eff
3
2
1
Find the effective resistance of this set of resistors.
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