My goal is to derive the equation:(adsbygoogle = window.adsbygoogle || []).push({});

[itex]R_I = \frac{R_S R_P}{R_S - R_P}[/itex]

Ri and Rp are in parallel.

Rs is in series with the other two.

Rs and Rp are variable resistance boxes. Ri is a galvanometer.

(I don't think that last point matters anyway).

Please use only Ohm's Law V=IR and any other simple circuit analysis procedure to solve.

Please view the picture.

I have already spentmanyhours trying to manipulate the equations-- it will be pointless to post them here; so just trust that I have.

Please answer if you can; it will be greatly appreciated.

Thank you

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# Circuit Analysis

Can you offer guidance or do you also need help?

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