In the given figure, when galvanometer shows no deflection, the current (in $A$) flowing through $5\,\Omega $ resistance will be
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Let current through $5\,\Omega $ resistance be $i$.
Then $i \times 25 = (2.1 - i)\,10$
$i = \frac{{10}}{{35}} \times 2.1 = 0.6\,A$
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