Question

two parallel resistors 6 Ohms each,
\[\frac{ 1 }{ 6 } + \frac{ 1 }{ 6 } = \frac{ 1 }{ 12 }\]
what is total resistance?

Answer 1

If I remember correctly, it should be this:

\[\frac{6 \times 6}{6 + 6}\]

Answer 2

looks good

Answer 3

And in general the formula for total resistance it:

\[R_{\text{total}} = \frac{R_1 \times R_2}{R_1 + R_2}\]