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Suppose that the power
used by a light bulb in a circuit is 16 W, and the bulb has a resistance of 4 ohms.
Calculate the current (in amps) flowing through it.
2 A Explanation:The power flowing in a circuit is given by;P= I^2 RWhere;I= current = the unknownR= resistance= 4 ohmsP= power=16 WI= √P/RI= √16/4I= 2 A
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