An electric appliance that reads 80W / 220V, is installed at 80V voltage then the power of the device is ...
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Hello
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Power-voltage rating of an electrical appliance = 80W/220V
Now,
P = V²/R
R = V²/P
R = (220 × 220)/80
R = 605 ohm
So,
When it is installed at 80 V,
P = V²/R
=> P = (80 × 80)/605
P = 10.578 W
---------
Power-voltage rating of an electrical appliance = 80W/220V
Now,
P = V²/R
R = V²/P
R = (220 × 220)/80
R = 605 ohm
So,
When it is installed at 80 V,
P = V²/R
=> P = (80 × 80)/605
P = 10.578 W
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