Chapter 12 is about alternating currents.

On pages 104 and 105we introduce the oscilloscope as an “automatic voltage vs. time graph maker”.

The Chapter 12 Review Sheet should be started now.

On pages 106 and 107we use the oscilloscope and a square-wave generator to measure an unknown capacitance.

On pages 108 and 108bwe figure out all about rectifiers and filter capacitors.

On pages 109 and 110we introduce capacitive reactance and figure out how it can be measured and how it must behave.

On pages 110, 110b, and 110cwe finish figuring out reactance, and start in on impedance.

On pages 111 and 111b we learn about crossover networks and amplifiers.

First May Test with skill sheet and solutions:


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