Question

A cell of emf E and internal resistance r is connected across a variable resistor R. plot a graph showing the variation of terminal potential V with resistace R .

Answer 1

V & R are directly proportional to each other hence a stright line passing tbroufh origin and making angle 45° with the +ve x-axis...
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I /______________ its not the perfect diagram but the line will be straight line and Solid line not dashed...with 45° angle...