isobel1998
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Can someone explain what the whole of module 6 means?
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the traveller
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(Original post by isobel1998)
Can someone explain what the whole of module 6 means?
its abour electricity, resistors and some other crap i havent got my head around yet
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ChloBrown98
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These are some of my notes on p6:
current-> the flow of electrons
Resistance-> how hard it is for electrons to flow
resistance = voltage (in V)
----------------
Current (in​ A)
there are two categories;
ohmic-> fixed resistance
non- ohmic -> variable resistance
failment lamp is a non ohmic device
A potential divider with a variable resistor- variable resistors change the wire length that current goes through
LDR- decreases as the light intensity increases
thermistor- decreases as the temperature increases

transistors- 3 terminals
base
collector
emitter
control output
can switch on a greater current through the collector
1b + 1c + 1e

transistors as an AND gate
two transistors can be combined to make an AND gate

Nand- and gate into not gate
00 1
01 1
10 1
11 0

Nor- or and a not gate
00 1
01 0
10 0
11 0
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