A student measures the terminal potential difference (V) of a cell (of emf s and internal resistance r) as a function of the current (I) flowing through it. The slope and intercept of the graph between V and I, then respectively, equal [AIPMT (S) 2009]

A student measures the terminal potential difference (V) of a cell (of

1.	A student measures the terminal potential difference (V) of a cell (of emf s and internal resistance r) as a function of the current (I) flowing through it. The slope and intercept of the graph between V and I, then respectively, equal [AIPMT (S) 2009]
A.	\[\varepsilon \] and \[-r\]
B.	\[-r\] and \[\varepsilon \]
C.	\[r\] and \[-\,\varepsilon \]
D.	\[-\,\varepsilon \] and \[r\]
Answer» C. \[r\] and \[-\,\varepsilon \]