MM ALS Notes

Ex. 12V battery connected to a 4Ω resistor I=V/R = 12V/4Ω=3 amps. P=V x I = 12V x 3amps = 36 watts. Alternating Current (AC) Based on the concept that electricity has nearly no inertia & direction of flow can be reversed rapidly by reversing the voltage. Plotted it looks like a sine wave. Current flow can lag behind the voltage reversal. ................
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