which one of the following is the correct setup for studying the dependence of the current on the potential difference across a resistor and why?
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Actually this question is only wrong as because none of circuits are closed, all the circuits have open key please observe carefully
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Answer c is the correct answer.
Study the dependence of current I on the potential difference V across the resistor as well as determine its resistance.
Repeat for different emf in the battery.
With calculating V/I each set of data mainly gives the resistance.
Average resistance are calculated and it is easier to draw V-I graph taking V and Y axis and I along the X axis.
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