Sunday, 27 March 2011

TTEC 4842 exp 2 (1

Components:
1 x Diode, 1 x L.E.D (light emitting diode)


Exercise:
Using a multimeter, identify the anode and cathode of the diode

Explain how you could identify the cathode without a multimeter:
The easiest way to figure out which side of an L.E.D is the cathode is that it will always be the short piece of wire out of the two wires built into the L.E.D. For a rectifying diode the cathode will always be the side which has the strip on it.
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2 comments:

  1. Anonymous5 May 2011 at 13:27

    On your diode the volt drop should be about .6-.7 when in forward bios when in reverse they both (led/diode) will be open circuit

    ReplyDelete
  2. Joshua11 May 2011 at 02:41

    Had made a mistake on graph, the volt drop across the diode was actually 0.8v. Changes have been made

    ReplyDelete

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