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A 6-V battery is connected to a circuit that has a 120 mA current running through it. If the circuit is allowed to run for 1 minute, what is the total electrical energy expended by the circuit?

Answer :

Final answer:

The total electrical energy expended by the circuit is 43.2 joules.

Explanation:

The total electrical energy expended by a circuit can be calculated using the formula:

Energy = Power x Time

To find the power, we can use the formula:

Power = Voltage x Current

Substituting the given values:

Power = 6V x 0.120A = 0.72W

Since the circuit is allowed to run for 1 minute, the time is 60 seconds.

Finally, substituting the computed values into the energy formula:

Energy = 0.72W x 60s = 43.2J

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