A potentiometer circuit shown in the figure is set up to measure e.m.f. of a cell E . As the point P moves from X to Y the galvanometer G shows deflection always in one direction, but the deflection decreases continuously until Y is reached. In order to obtain balance point between X and Y it is necessary to A. Decreases the resistance RB. Increase the resistance RC. Reverse the terminals of battery VD. Reverse the terminals of cell E

A potentiometer circuit shown in the figure is set up to measure e.m.f

1.	A potentiometer circuit shown in the figure is set up to measure e.m.f. of a cell E . As the point P moves from X to Y the galvanometer G shows deflection always in one direction, but the deflection decreases continuously until Y is reached. In order to obtain balance point between X and Y it is necessary to A. Decreases the resistance RB. Increase the resistance RC. Reverse the terminals of battery VD. Reverse the terminals of cell E
Answer» Correct Answer - A

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