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Author Topic: current flowing  (Read 1548 times)
berhanumek
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« on: September 02, 2005, 09:43:56 AM »

As an A+ technician while practising on a compter I found an electrical current with a tester flowing on the chasis of an At motherboard computer. I tried to figure out if there is a fault with the power supply  or a wrong connection. But there is non and the motherboard and all the systems of the computer are working well. Is it normal to find a current flowing on the chasis of a computer?

I will be thankful for your help by explaining this phenomenon.

Yours
Berhanu
AA,Ethiopia
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TheShadow
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« Reply #1 on: September 02, 2005, 02:14:24 PM »

The chassis is tied to power supply ground.  You did not explain your physical method of measuring so it is hard to say.  However a computer basically is just a large series-parallel DC circuit and is also affected by lots of magnetic induction from signals.  Read up on series-parallel and you will have your answer.
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