Question

If four resistors of 1 ohm are connected in parallel find the effective resistance

Answer 1

Answer:

effective resistance

$\frac{1}{r ^{1} } + \frac{1}{r ^{2} } + \frac{1}{r ^{3} } + \frac{1}{r ^{4} } = \frac{1}{r^{t} }$

$= > \frac{1}{1} + \frac{1}{1} + \frac{1}{1} + \frac{1}{1} = \frac{1}{r ^{t} }$

$= > \frac{1 + 1 + 1 + 1}{1} = \frac{1}{r ^{t} }$

$= > \frac{4}{1} = \frac{1}{r ^{t} }$

$= > r = \frac{1}{4}$

$r = 0.2 \: ohm$