(adsbygoogle = window.adsbygoogle || []).push({}); 1. I need to find the resistance of unknown resistor by varying its lenght. I have a voltmeter, and ammeter (the voltage is to supposed to stay constant, with the current changing). From this I am supposed to create a graph, but teh only graphs I know are V by I to get R, but is V is constant the slope of the line won't work. Anyone have any ideas how I can make the graph?

2. The only equations I've been taught are V=IR and P=IV.

3. I'm really stuck, any help would be great

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# Homework Help: Find resistance with length in a circuit

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