two lamps one rated 100 watt 220 volt and the other 200 watt 220 volt are connected in series and in parallel to the electric main supply of 220 volt find the current drawn in each case
Anonymous:
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Answered by
94
P=VxV÷R
In first case
100=220×220÷R
R=484
In second case
200=220x220÷R
R=242
R(total)=242+484=726
we can now take out the current
V=IR
220=Ix726
I=10/33
IN FIRST LAMP 100=220
In first case
100=220×220÷R
R=484
In second case
200=220x220÷R
R=242
R(total)=242+484=726
we can now take out the current
V=IR
220=Ix726
I=10/33
IN FIRST LAMP 100=220
thanks
Answered by
84
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