The filament of a light bulb in the circuit of Figure 334 (a) has a certain amount

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The filament of a light bulb in the circuit of Figure 3–34 (a) has a certain amount of resistance, represented by an equivalent resistance in Figure 3–34 (b). If the bulb operates with 120 V and 0.8 A of current, what is the resistance of its filament? 

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