### Electrical Homework

##### Formulas

Electricity |
Keys |

F_{e} = [(9×10^{9}) q_{1} q_{2} ]/r^{2}
i = q/t
P = i V
V = i R
P = i^{2} R |
i = current
q = charge
R = Resistance
t = time
V = Voltage |

Find an electrical device in your home. Determine either the power consumption in Watts
or the current usage in amperes. If the unit plugs into a wall outlet (and it is not
a transformer), the voltage
is 120 Volts.

a. Watts = ______ Volts = ______ Amperes = _____

Find the resistance R in ohms using volts = current x resistance.

Ohms = ______

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