On Fri, 12 Feb 2010 12:35:07 -0800 (PST), Cross-Slide
wrote:

On Feb 12, 12:54*pm, Bob Engelhardt wrote:
Cross-Slide wrote:
The scopes are literally connected to points A and D.

No, no, NO. *Two instruments connected to the same 2 points will not
give different readings just because you say that one of them is reading
the right-side voltage & the other is reading the left. *Absurd on the
face of it!


And that is what is interesting.
Any answer is absurd.
Two resistors, connected in a Ring, can you measure the voltage drop
across either of them?
If you cannot measure a voltage drop across a resistor, is it passing
current?
If you can measure a voltage across a resistor, How do you account for
the other resistor connected in series with it?
The two resistors are both connected to the same two points. A and D.
If there is no voltage measured from A to D, are the resistors passing
current?
If the Polarity from A-D is the same for either resistor, that too is
impossible.

Can you tell me WHAT the correct answer will have to be?
Any answer can shown to be absurd, so which one do you think it is?

Read my post some way up. The loop formed by the meter leads and the section
of circuit under test has no net induced voltage (no source of MMF in the
loop), therefore, it only reads the resistive voltage drop in the resistor,
not the induced voltage that is generating the current.

This is Field theory 101.

Mark Rand(BSc Hons. E.E)
RTFM