Six 100 W (120 V) lightbulbs are wired in series, then the combination is connected to a 120 V supply. How much power is dissipated by each bulb?
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Two light bulbs use 30 W and 60 W, respectively, when connected in parallel to a 120-V source.
How much power does each bulb use when connected in series across the 120-V source, assuming that their resistances remain the same?
25.35 Light Bulbs. The power rating of a light bulb (such as a 100-W bulb) is the power it dissipates when connected across a 120-V potential difference. What is the resistance of (a) a 100-W bulb and (b) a 60-W bulb? (c) How much current does each bulb draw in normal use?
Problem 6.Considerthree lightbulbs each of resistance 100 . Let them be connectedinseries to a
110 Vsource.
a) Sketchthe circuit.
b) Findthe current through each bulb.
c) Findthe power dissipated in each bulb.
d) Findthe total power supplied by the voltagesource.
e) Whatis the equivalent resistance of thiscombination?
f) Howmany of these light bulbs could be connectedin series to the 110 Vsource without blowing a
10-Afuse?