An electric lamp is marked 100w ,250v if the lamp is connected to 250v mains.calculate the current taken
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Answer:
Power, P=100 watts
potential difference, V=250V
current, I=?
P=VI
100 = 250*I
100/250 = I
0.4 A = I
Therefore, the current taken by the electric lamp is 0.4 amperes
Explanation:
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