Banach manifold: Difference between revisions

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An illustration for how to use a potentiometer and known voltage supply to measure a voltage across a portion of an unknown circuit. The potentiometer's resistance is changed at the wiper until the null detector shows zero voltage between the two circuits.
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: <math> Vt = \frac{Vk}{Re}Rw </math>
 
where
 
Vt: Voltage across test points
 
Vk: Known voltage
 
Re: Potentiometer resistance from one end terminal to the other end terminal
 
Rw: Potentiometer resistance from wiper to end terminal
 
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Latest revision as of 19:09, 25 April 2014

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