The equivalent resistance between the points $A$ and $B$ is :-
A$\frac{36}{7}\, \Omega$
B$10\, \Omega$
C$\frac{85}{7}\, \Omega$
D
None of these
Medium
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C$\frac{85}{7}\, \Omega$
c $R_{A B}=\frac{9 \times 12}{9+12}+7$
$=\frac{85}{7}$
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