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Resistor Types

  • #1
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resistor-sample.JPG

I am taking an intro electrical circuits course which requires that I write extensive lab reports. I just completed a really simple lab about calculating resistance when configured in series and parallel, etc.

In my intro I'm writing a short explanation about resistance, and resistors, and such. For resistors used in a common college lab course, does anyone have an idea what exact "type" of resistor they might be?

I.E http://www.resistorguide.com/materials/ here are a couple examples of what I mean...I figure they might be one of the film types but I am not sure.

Any suggestions are appreciated! Thank you very much!
 

Answers and Replies

  • #2
phinds
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Probably carbon composition resistors.

EDIT: ... oh, wait ... that shape makes it more likely they are carbon film resistors.
 
  • #3
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Thank you! I thought so also...based on the tan shell, but I didn't know if shell color was the defining characteristic. Thank you!
 
  • #4
CWatters
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I don't think you can rely on the body colour to mean anything although metal film seem to be mostly blue and carbon film are mostly tan/beige.

One or two web sites claim...

blue body = fusible resistor
white body = non-flammable

Would be nice to find confirmation of that.

On very old resistors the body colour was part of the value marking scheme....

Body colour = 1st digit
End colour = 2nd digit
Dot colour = Multiplier
 

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