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17/07/2021 5:38 pm
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If 3 resistances of 3 ohm each are connected in parallel, what will be their total resistance?
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17/07/2021 5:43 pm
R1 = R2 = R3 = 3Ω
\(\frac{1}{R}\) = \(\frac{1}{R_1}\) + \(\frac{1}{R_2}\) + \(\frac{1}{R_3}\)
= \(\frac{1}{3}\) + \(\frac{1}{3}\) + \(\frac{1}{3}\) = \(\frac{3}{3}\) = 1
∴ R = 1Ω