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resistor continuity

 
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Rwright955
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PostPosted: Thu May 01, 2008 12:37 am    Post subject: resistor continuity Reply with quote

If you place the probes of an ohm meter at each end of a resistor, would you show continuity regardless if the resistior is or isn"t installed in the circuit board? Can I assume that if there is no continuity that the resistor is bad? Thanks for your time and advice.
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vtech



Joined: 08 May 2006
Posts: 1264
Location: USA

PostPosted: Thu May 01, 2008 6:08 am    Post subject: Reply with quote

A resistor is only a passive device and should be measured OUT of the circuit for exact value. Depending on it's value, you would read something on the meter, unless you happen to have a very high value (several megaohm) resistor that is out of the range of most meters & may not register anything.

Suggest learning about how to read color codes. This way you will know the actuall value & can use a meter as a "spot check" to verify before removing from circuit.

You can even use any of the online calculators for practice.
http://www.dannyg.com/examples/res2/resistor.htm
http://www.ealnet.com/m-eal/resistor/resistor.htm
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