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A light bulb draws a current of 2 amps when connected to a wall outlet (120 volts). What is the resistance...?
A light bulb draws a current of 2 amps when connected to a wall outlet (120 volts). What is the resistance and wattage of the bulb?
Thanks!!h10
Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference or voltage across the two points, and inversely proportional to the resistance between them
The mathematical equation that describes this relationship is Volts - Current x Resistance
so 120/2 = 60
Wattage is the power rating so that is volts x Amps (current) so is 240 W here
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