V = 220 volt
I = 0,5 ampere
biaya per kwh = Rp. 400
Daya (P) = V * I = 110 watt = 0,11 kWh
setelah tau daya tv, hitung lama tv menyala dalam 1 bulan
t = 4 * 30 = 120 jam
sehingga total biaya = 0,11 * 120 *400 = Rp. 5280
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V = 220 volt
I = 0,5 ampere
biaya per kwh = Rp. 400
Daya (P) = V * I = 110 watt = 0,11 kWh
setelah tau daya tv, hitung lama tv menyala dalam 1 bulan
t = 4 * 30 = 120 jam
sehingga total biaya = 0,11 * 120 *400 = Rp. 5280