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Two 40-watt bulbs are connected in parallel to a 120-volt circuit. What is the current in each bulb?
Choose one answer.
a. 1/4 A
b. 1/3 A
c. 1/2 A
d. 2 A
e. 3 A
I used V = IR and P = V^2/R
My attempt
40 W = 120V^2 / R giving R = 360
1/R + 1/R = 1/Req => 1/360 + 1/360 = 1/Req => Req = 180ohms
V=IR => 120 = 180I => I = 2/3
which is not an answer
Choose one answer.
a. 1/4 A
b. 1/3 A
c. 1/2 A
d. 2 A
e. 3 A
I used V = IR and P = V^2/R
My attempt
40 W = 120V^2 / R giving R = 360
1/R + 1/R = 1/Req => 1/360 + 1/360 = 1/Req => Req = 180ohms
V=IR => 120 = 180I => I = 2/3
which is not an answer
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