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1. a. W= P.t
= 100. 3600
= 360.000 J
b. W = P.t
= 100 W. 1 Jam
= 100 Wh
= 0,1 Kwh
2. W= V.i.t
= 220. (200/1000) 60 h
= 2640 Wh
= 2,64 Kwh
3. W = W akhir - W awal
= 6750 - 6235
= 515 Kwh
Biaya = 515 x Rp. 250
= Rp. 128.750
g2
4. a. V = i.R
= 0,5. 440
= 220 V
b. W= V.i.t
= 220. 0,5 . (30.60s)
= 198.000 J
= 198 Kj
c. P = V.i
= 220. 0,5
= 110 W
5. karena energi yang diserap oleh kalkulator lebih sedikit daripada energi yang diserap oleh robot
g3
2. a. Rp =
=
= Ω
b. V= I.Rp --> I = V / Rp
= 3/2 A
= 1,5 A
3. Rp = 1+4 = 5 Ω
I = 200 mA
= 200/1000 A
= 0,2 A
V = I. Rp
= 0,2 . 5
= 1 V
4. Rp= Ω
V = 3 v
I = V / R
= 3 / 24
= 1 / 8 A
= 1/8 . 1000 mA
= 125 mA