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A light bulb is rated at when operated at its design voltage of
PHYSICS · Single correct · CBSE · Physics · Electricity · Electricity
Problem
A light bulb is rated at
100
W
100\,\text{W}
100
W
when operated at its design voltage of
120
V
120\,\text{V}
120
V
. If the bulb is instead connected to a
100
V
100\,\text{V}
100
V
supply, which of the following is closest to the power it will dissipate? (a)
83
W
83\,\text{W}
83
W
(b)
100
W
100\,\text{W}
100
W
(c)
69
W
69\,\text{W}
69
W
(d)
58
W
58\,\text{W}
58
W
Related theory
Electric Power
Electrical power and energy
Electricity
Electric Circuits
Electrical energy and power
Current Electricity
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