While doing an experiment with potentiometer (see figure) it was found that the deflection is one sided and (i) the deflection decreased while moving from one and A of the wire, to the end R, (ii) the deflection increased, while the jockey was moved towards the end D. (a)Which terminal positive and negative of the cell E_1 is connected at X in case (i) and how is E_1 related to E ? (b)Which terminal of the cell E_1 is connected at X in case (i in a) ?

While doing an experiment with potentiometer (see figure) it was found

1.	While doing an experiment with potentiometer (see figure) it was found that the deflection is one sided and (i) the deflection decreased while moving from one and A of the wire, to the end R, (ii) the deflection increased, while the jockey was moved towards the end D. (a)Which terminal positive and negative of the cell E_1 is connected at X in case (i) and how is E_1 related to E ? (b)Which terminal of the cell E_1 is connected at X in case (i in a) ?
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