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Why are plugs made of plastic?
It is an insulator plastic does not melt when a plug gets hot
What is an isotope?
They occur when an element atoms exists with a different number of nuetrons
What are beta particles made of?
An electron particle of a negative charge
What are alpha particles made of?
Two protons and two nuetrons
positive charges do not....
move
how is lightening made?
when hot air meets cold air
what does DC stand for?
direct current
what does AC stand for?
alternating current
charge =
current x time
power =
voltage x current
energy =
power x time
what does the green and yellow wire stand for?
earth
what does the colour blue stand for in wiring?
neutral
potential difference = 20v
current = 2 amps
resistance = ?
10ohms
Resistance =
potential difference
current
Energy transformed =
charge x potential difference
Total charge =
current x time
Author
McAuley
ID
143131
Card Set
howse
Description
the best of the bestist
Updated
2012-03-22T14:29:58Z
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