diketahui rangakaian seri dan paralel R1=2 ohm, R2=2 ohm, R3=4 ohm. ditanya nilai resistansi total dalam rangakaian

[tex] \frac{1}{rp} = \frac{1}{2} + \frac{1}{2} \\ \frac{1}{rp} = \frac{2}{2} \\ rp = 1[/tex]
[tex]rt = (1 + 4)ohm \\ rt \: = 5ohm[/tex]