Q. In an experiment, a graph was plotted of the potential difference $V$ between the terminals of a cell against the circuit current $i$ by varying load rheostat. Internal conductance of the cell is given by
A) $xy$
B) $\frac{y}{x}$
C) $\frac{x}{y}$
D) $(x - y)$
Explanation
(b) Here internal resistance is given by the slope of graph
$i.e.\frac{x}{y}$. But conductance $= \frac{1}{Resistance} = \frac{y}{x}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.