Question

Three resistor of resistance 3ohm,4ohm,5ohm respectively are connected in parallel. Find value equivalent resistance?

Answer 1

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Answer 2

$we \: know \: in \: parallel \: resistance \: is \\ \frac{1}{r} = \frac{1}{3} + \frac{1}{4} + \frac{1}{5} \\ = \frac{20 + 15 + 12}{60} \\ = \frac{47}{60} \\ r = \frac{60}{47}$
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