Question

calculate the net resistance between a and b and flow of current​

Answer 1

$\frac{1}{r {}^{eq.} } = \frac{1}{r {}^{1} } + \frac{1}{ {r}^{2} } (parallel)\\ \frac{1}{r {}^{eq.} } = \frac{1}{3} + \frac{1}{3} + \frac{1}{3} \\ \frac{1}{r {}^{eq.} } = \frac{3}{3} \\ {r}^{eq.} = 1 \: ohm \\ 3 + 1 = 4 \: ohm \: \\ v = ir \\ 8v = i \times 4 \: ohm \\ i = 2 \: ampere \: and \: 4 \: ohms$

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