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E = 1,5 V
VR = 1,35 V
i = 0,3 A
R = ___ ?
r = ___ ?
Hambatan luar
Vr = i R
1,35 = 0,3 R
R = 1,35 / 0,3 = 4,5 Ω ← jawaban
Hambatan dalam
E = VR + Vr
E = VR + i r
1,5 = 1,35 + 0,3 r
0,15 = 0,3 r
r = 0,15 / 0,3 = 0,5 Ω ← jawaban