MCQ
Five resistances are connected as shown in the figure. The effective resistance between the points $A$ and $B$ is


- ✓$\frac{{10}}{3}\,\Omega $
- B$\frac{{20}}{3}\,\Omega $
- C$15\,\Omega $
- D$6\,\Omega $

$R_{AB}=\frac {10}{3}\,\Omega $
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$\frac{\mu_0 a^2}{2^{p / 2} R}$, then the value of $p$ is