n
stream of
electrically charged particles passing through a given area
(Movement of electrons in a wire)
1) Metals -
contain many __________ electrons (good conductors)
2)
Glass, fused quartz, rubber - good _________________
n
Few
free electrons
Insulators
have a High _______________
- (Structural resistance to electrons flow)
3) Semiconductor -
a material with a resistance _________________
_________________________________________________________
1)
pure
liquids ______________________
2) liquid with dissolved ________________ conduct
( ___________________________________ solution)
( ion movement
transfers charge not electrons)
n
Gases
conduct when _______________________ exposed to:
a) high energy ________________
b) OR ________________________
c)
OR
with collision with high speed particles
·
Charge in a gas
is transferred by ________________________________________________/
plasma – very hot ionized gas
1)
_______________________
circuit
2) ______________________________ (voltage) supplied by
some source
ex. ______________________
3) _______________