On Wed, 13 Jun 2018 13:56:13 GMT
Alister  wrote:

> I think you will find i did
> I stated that there was no voltage difference between the 2 leads.
> they would not both be at 5V as Voltage is a difference between points so
> this is an invalid measurement.

 Sure and given that one of them is known to be at 5V relative to
ground the other one is also at 5V relative to ground - at least as long as
the voltmeter is connected.

 Now please stop with the pedandtry and assume a 'relative to
ground' where needed.

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