Velleman EDU02 Manuel d'utilisateur télécharger pdf (Page 6)

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Diode

Diodes allow the current to flow in only one direction, from

(+) to (–). Current flow in the opposite direction is blocked.

(Velleman part# BAT85)

Battery holder

Holder for two AAA rechargeable batteries. Mind the polarity

(Velleman part# BH421A)

A special case: Zener diodes

Zener diodes allow the current to

flow from (+) to (-), as regular diodes

do. If you invert the polarity, they

drop a certain voltage, which can be

found on the body of the zener

diode, e.g. 2V4= 2.4V

(Velleman part# ZA2V4)

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Velleman EDU02 Manuel d'utilisateur Page 6