A cell of emf ( ) and internal resistance (r ) is connected across a variable load resistance (R ). The graph drawn between its terminal voltage and resistance (R ) is

Step-by-step solution

According to the question, circuit diagram of a cell is given below, As, (I r=E-V V R r=E-V ) ( V [1+ r R ]=E V= E R+r R ) General equation of a straight line passing through the origin, (y=m x ) Here, (y=V, m= E R+r = ) slope of the line and ( x=R ) As this line is passing through the origin and has a slope which reduces as (R ) increases. Hence, the graph is