A bulb is marked 110W-220V. The resistance of the filament is:
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Answered by
6
Answer:
p=v^2/r so 220 ×220/110 =440ohm .hope you understand.
Answered by
8
Answer:440ohm
Explanation:Power,P=110W
Voltage,V=220V
P=VI
P=V^2/R
R=V^2/P
R=220×220/110
R=400ohm
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