Problem: A typical American family uses 1000 kWh of electricity a month.(a) What is the average current in the 120 V power line to the house?(b) On average, what is the resistance of a household?

(a)

Average current:

$i = \frac{P}{V}$

Power, P = E/t

Time, t, is one month = 30 days

$t = (30 d a y s) (\frac{24 h}{1 d a y}) (\frac{3600 s}{1 h})$

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A typical American family uses 1000 kWh of electricity a month.

(a) What is the average current in the 120 V power line to the house?

(b) On average, what is the resistance of a household?

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Power in Circuits concept. You can view video lessons to learn Power in Circuits. Or if you need more Power in Circuits practice, you can also practice Power in Circuits practice problems.