A mobile phone charger draws O.2 A of current from the 120 V wall outlet. How much energy does it use if it were plugged in for 24 hours? * 0.58 kWh 35 kWh 0.024 kWh 2,070 kWh
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
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Why is the answer not approx 0.58 kWh as P = (0.2)(120) = 24 W = 0.024 kW
and if E = P*t then E = 0.024 kW * 24 h = 0.58 kWh? Is this not the correct answer? The solution above multiples 24 by 60? Why?
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