Dik.
Lampu 60w/12v
V aki = 12 v
Dit.
Energi utk menyala 2 menit. ?
I ?
R ?
Jawab.
a.
W = P.t = 60. 2. 60
W = 7200 J
b.
W = V.i.t
i = W/V.t
i = 7200/(12. 2. 60)
i = 5 A
c.
R = V/I = 12/5 = 2,4 ohm
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Dik.
Lampu 60w/12v
V aki = 12 v
Dit.
Energi utk menyala 2 menit. ?
I ?
R ?
Jawab.
a.
W = P.t = 60. 2. 60
W = 7200 J
b.
W = V.i.t
i = W/V.t
i = 7200/(12. 2. 60)
i = 5 A
c.
R = V/I = 12/5 = 2,4 ohm