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Reading resistors? Answered

in the part of the lesson introducing 5 stripe resistors, the example resistor has a brown stripe on both ends. How do you know which end to start reading from?

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randofoBest Answer (author)2017-02-14

Yes. Good point. Five stripe resistors are tricky, and it takes a bit of intuition and practice to know which side to start from. That said, if you don't know which side, you can always measure the resistance using a multimeter. When in doubt, do that.

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lloydsteve0 (author)2018-01-24

You could read the value in both directions and see what you get. One value will occur in the preferred values table and the other may be not a preferred value.
The preferred values depend on the tolerance but typically run like this for 10% tolerance.
1 - 1.2 - 1.5 -1.8 - 2.2 - 2.7 - 3.3 - 3.9 - 4.7 - 5.6 - 6.8 - 8.2 - and multiples thereafter. This is the E12 set meaning 12 values per decade. There is also E24,E48 E96 E192 each with more steps and greater precision and yes use a meter to confirm it.

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