AC power

Today we started class with learning about op amp AC circuits, oscillators and power. oscillators are circuits that convert dc to ac.

We were asked to consider an Inductor with 1 F and the variables involved to calculate inductance. Then we calculated the number of turns required to get 1 H of inductance for an Inductor:

according to our calculations above, we would need 4 million turns to get 1 H of Inductance! That's why we don't normally see that high value of Inductance in everyday life.

below is the derivation for the average power of AC circuit formula

We did following example in class to solve for average power of AC circuit.

Following is the formula to calculate maximum average power transfer.

We did below example in class to solve for complex conjugate of AC circuit.

Class demonstration by professor mason:

Professor Mason did a class demo with box that contains two light bulbs, one with AC source and one with DC source. He turned both lights on.  And we noticed that, it takes approximately twice the voltage on AC side to get same brightness as DC side. This shows how important RMS value is when calculating maximum power of AC circuit.

Summary: we learned about inductor and its parameters. we learn to calculate average power and maximum power within AC circuits.