Jawabanmu

2014-08-21T16:58:39+07:00
120 mA = 0,12 A
⇒I= V/R
⇒R=V/I = 40 / 0,12 = 333,33 Ohm

⇒V=I x R
⇒V=0,6 x 333,33 = 200 V.
0,6 x 333,33 bukannya 199,998 yahh,,, at gmn?