Question

four resistors each of 50 ohm are connected in parallel find equivalent resistance

Answer 1

Resistances are connected in parallel.
Therefore,
Following formula will be used:-
$\: \: \: \: \: \: \: \frac{1}{net \: \: \: r} = \frac{1}{r1} + \frac{1}{r2} + \frac{1}{r3} + \frac{1}{r4} \\ => \frac{1}{net \: \: r} = \frac{1}{50} \times 4 \\ => \frac{1}{net \: \: r} = \frac{2}{25} \\ = > net \: \: r = \frac{25}{2} = 12.5ohm.$




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