Electrical Homework


Formulas
Electricity Keys
Fe = [(9109) q1 q2 ]/r2
i = q/t
P = i V
V = i R
P = i2 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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