3 buah resistor di pasang paralel. R1= 330 R2=56 R3=22.. Rt=....???

Rt = 1/R1 + 1/R2 + 1/R3
= 1/330 + 1/56 + 1/15
= 56/18.480 + 330/18.480 + 840/18.480

= 1226/18.480
= dibalik (18.840 / 1226)

Maaf kalo salah