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Interrelation Between P, V, I and R
An electric motor takes 5 A from a 220 V line. Determine the power of the motor and the energy consumed in 2 h.
Two lamps, one rated 100 W at 220 V, and the other 60 W at 220 V, are connected in parallel to electric mains supply. What current is drawn from the line if the supply voltage is 220 V?
An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, the power consumed will be –
(a) 100 W
(b) 75 W
(c) 50 W
(d) 25 W
Which of the following terms does not represent electrical power in a circuit?