| Electricity | Keys |
|---|---|
| Fe = [(9×109) 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 = ______