An electric bulb is rated 60w 240v if it is connected 192 v
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P=v^2/r
r=240×240/60
r=960ohm
When v=192 then p=?
P=v^2/r
p=192×192/960
p=38.4watt
r=240×240/60
r=960ohm
When v=192 then p=?
P=v^2/r
p=192×192/960
p=38.4watt
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