INTRO: Today in class we continued our discussion on AC circuits. An integral part to electronics is the power supplied and absorbed by circuit elements. Due to the alternating current, power calculations have different equation structures then direct current equations.
Below are the equations for power for AC circuits. Due to the alternating current, their is instantaneous and average power per circuit element. The average power is the quantity that is typically used. Also the effect/rms value is the DC currrent or voltage needed to create the same power quantity in a DC circuit.
In the picture below Professor Mason connected two bulbs, one with DC current and the other with AC current. The bulbs with DC current was the bulb that shown brighter, like the face of a child opening a copy of the ultra-super-mega packed director, Arnold cut edition of Jingle all the way.
When the Professor turned up the voltage to ~1.5 times on the AC bulb, the light was relatively the same.
CONCLUSION: Today we worked with Power in AC circuits. Per the equations, which were backed up by a physical example, power equations are different for AC and DC. We also discussed the Effect/RMS value, which is the DC equivalent current or voltage necessary to mimic the same power in an AC circuit. Additionally, we did not perform any labs today, as we ran out of time.
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