A) \[\varepsilon \] and \[-r\]
B) \[-r\] and \[\varepsilon \]
C) \[r\] and \[-\,\varepsilon \]
D) \[-\,\varepsilon \] and \[r\]
Correct Answer: B
Solution :
| [b] According to Ohm's law \[\frac{dV}{dI}=-r\] and \[V=\varepsilon \] if \[I=0\] [As \[V+Ir=\varepsilon \]] |
| \[\therefore \] Slope of the graph \[=-r\] and intercept \[=\varepsilon \] |
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