how to check for an open resistor?
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how to check for an open resistor?

 
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electronics_field



Joined: 11 Oct 2006
Posts: 2
Posted: Wed Oct 11, 2006 4:46 pm    Post subject: how to check for an open resistor? Reply with quote
how to check for an open resistor?
by analog meter

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neon



Joined: 25 Feb 2006
Posts: 594
Posted: Fri Oct 13, 2006 2:01 am    Post subject: Reply with quote
You realy need to lift one side and go at it. In circuit you cannot check it.
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jandrade2005



Joined: 25 Oct 2006
Posts: 1
Location: Arizona
Posted: Wed Oct 25, 2006 5:05 am    Post subject: Reply with quote
Well what you can do is check the voltage on the resistor if it's in a circuit.

If the resistor is open, then almost all the voltage source should go across that resistor.

Simple ohm's law. V=IR
When the resistors open, infinite or high resistance appears causing the voltage of the resistor to go up.

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neon



Joined: 25 Feb 2006
Posts: 594
Posted: Sun Oct 29, 2006 11:09 am    Post subject: Reply with quote
jandrade2005 wrote:
Well what you can do is check the voltage on the resistor if it's in a circuit.

If the resistor is open, then almost all the voltage source should go across that resistor.

Simple ohm's law. V=IR
When the resistors open, infinite or high resistance appears causing the voltage of the resistor to go up.

how can you possibly determine what is the voltage at any node. well i guess you do it your way but i will do it my way. simple logic.
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