If a bulb is rated at 60 W and operates at 120 V, what is the current flowing through the bulb?
0.5 A
Electrical power is related to voltage and current by the relation P = VI, where P is power, V is voltage and I is current.
Rearranging gives I = P / V, so substituting the given values yields I = 60 / 120 = 0.5 A.
Hence, the current flowing through the bulb is 0.5 A.
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