A dry cell has an $e.m.f.$ of $1.5\, V$ and an internal resistance of $0.05\,\Omega $. The maximum current obtainable from this cell for a very short time interval is ................... $A$
A$30$
B$300 $
C$3$
D$0.3 $
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A$30$
a (a) $i = \frac{E}{r} = \frac{{1.5}}{{0.05}} = 30A$
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