# Consider a simple circuit shown in Figure  variable resistance R’. R’ can vary from $R_0$ to infinity. r is internal resistance of the battery $(r< A. Potential drop across AB is nearly constant as R’ is varied. B. Current through R is nearly a constant as R’ is varied. C. Current I depends sensitively on R’. D.$I\geqslant \frac{V}{r+R}$ always.

The correct answers are the options (a,d)

Explanation:

$I=\frac{V}{r+R_{eq}}$

As $r+R

$I=\frac{V}{r+R_{eq}}\leq \frac{V}{r+R}$

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