射燈電費計算
回答 (3)
2009-10-17 5:46 pm
2009-10-16 6:40 am
20W :
20Wx1h
=20Wh
=0.02kWh
30W :
30Wx1h
=30Wh
=0.03kWh
50Wx1h
=50Wh
=0.05kWh
Total Power Consumption In kWh In Unit,=0.1kWh
By The Cost Of 1kWh = $0.9
So 0.1kWh = $0.09
2009-10-15 22:44:34 補充：
correction :
30W -> 35W
=0.035kWh
Total Power Consumption In kWh In Unit,= 0.105kWh
By The Cost Of 1kWh = $0.9
So 0.105kWh = $0.0945
20Wx1h
=20Wh
=0.02kWh
30W :
30Wx1h
=30Wh
=0.03kWh
50Wx1h
=50Wh
=0.05kWh
Total Power Consumption In kWh In Unit,=0.1kWh
By The Cost Of 1kWh = $0.9
So 0.1kWh = $0.09
2009-10-15 22:44:34 補充：
correction :
30W -> 35W
=0.035kWh
Total Power Consumption In kWh In Unit,= 0.105kWh
By The Cost Of 1kWh = $0.9
So 0.105kWh = $0.0945
2009-10-15 9:27 pm
射燈槽10A電流)值是指射燈槽的安全載流量, 任何接上的總負載不應超過此安全工作電流.
1度電是1000W/HOUR =1千瓦小時
P = P1 + P2 + P3 = 20W + 35W + 50W =105W
度電 = 105W /1000 = 0.105kWh.
電力公司約HK$0.9元為1度電
一個小時電費 =0.9 X 0.105 = HK$0.0945元
1度電是1000W/HOUR =1千瓦小時
P = P1 + P2 + P3 = 20W + 35W + 50W =105W
度電 = 105W /1000 = 0.105kWh.
電力公司約HK$0.9元為1度電
一個小時電費 =0.9 X 0.105 = HK$0.0945元
收錄日期: 2021-04-23 18:21:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091015000051KK00127