Question

please solve only ii) in parallel combination.
This is my first Physics class.​

Answer 1

Answer:

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Answer 2

Answer:

When connected in series

$R=R1+R2+R3=1+2+3=6 OHM$

When connected in parallel

$\frac{1}{R} =\frac{1}{R1} +\frac{1}{R2} +\frac{1}{R3} =\\\frac{1}{R} =\frac{1}{1} +\frac{1}{2} +\frac{1}{3}=\\R=\frac{11}{6}OHM$