On 13/06/18 22:53, Axel Berger wrote:
> druck wrote:
>> If you measure between 2 pins and get 0V it /could/ mean they are at the
>> same potential, or it could mean there is *NO* connection between them.
>
> There IS a connection between them. The voltmeter may (should) have a
> high resistance but not an infinite one. So any open pin will be pulled
> to the level of a live one. A non-open pin may well (and should) be able
> to source or sink the very small current throught the voltmeter and
> still impose its own potential.
>
> The measurement as stated is valid and sensible.
>
Finally someone who actually understands electricity!

--
Truth welcomes investigation because truth knows investigation will lead
to converts. It is deception that uses all the other techniques.

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