Question

1/10+1/15+1/25+1/75=? Total resistance​

Answer 1

ANS : R= 4.54Ω

EXPLANATION :

$R_{p$ = $1/R_{1}$+$1/R_{2}$+$1/R_{3}$+$1/R_{4}$

$= \frac{1}{10} + \frac{1}{15} +\frac{1}{25} + \frac{1}{75}$

LCM (10,15,25,75) = 150

$=\frac{15+10+6+2}{150} \\= \frac{33}{150}$

= 4.54Ω

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