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Problem
A 40 W, 220 V bulb (X) and a 100 W, 220 V bulb (Y) are connected in series across a 220 V mains supply. Approximately how much power is produced in bulb X? a)
40
W
40\ \text{W}
40
W
b)
20
W
20\ \text{W}
20
W
c)
8
W
8\ \text{W}
8
W
d)
30
W
30\ \text{W}
30
W
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