Power and current

Asked by chuckles | 9th Sep, 2010, 07:09: AM

Expert Answer:

P (Watts) = V (Volts) x I (amperes)          where P: power, V: Voltage, I: Current
 
(i) P = 100 W
     V = 220 V
therefore, I = 100/220 = 0.45 amperes
 
(ii) P = 100 W
     V = 110 V
therefore, I = 100/110 = 0.91 amperes

Answered by  | 9th Sep, 2010, 07:45: PM

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