In the given circuit all resistances are of value $R$ ohm each. The equivalent resistance between $A$ and…

In the given circuit all resistances are of value $R$ ohm each. The equivalent resistance between $A$ and $B$ is:
  1. $2 R$
  2. $\frac{5 R}{2}$
  3. $\frac{5 R}{3}$
  4. $3 R$

Solution

$\mathrm{R}_{\text {senies }}=\mathrm{R}_1+\mathrm{R}_2+\ldots . \ldots+\mathrm{R}_{\mathrm{n}}$ $\frac{1}{\mathrm{R}_{\text {parallel }}}=\frac{1}{\mathrm{R}_1}+\frac{1}{\mathrm{R}_2}+\ldots \ldots+\frac{1}{\mathrm{R}_{\mathrm{n}}}$

Asked in: JEE Main 2018 (15 Apr Shift 1 Online)

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