AC – Part 3. Today – Continue with AC Problems Some new material from the chapter Quiz on Friday; Exams will be returned and reviewed. There is a new Mastering Physics Assignment that finishes the chapter. Continue with chapter. Monday – Electromagnetic Waves – Putting it all together.
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AC – Part 3
An AC source with ΔVmax = 125 V and f = 25.0 Hz is connected between points a and d in the figure.
Calculate the maximum voltages between the following points: (a) a and b 62.8 V(b) b and c 45.6 V(c) c and d 154 V(d) b and d 108 V
What is the time average of this sine (AC) signal?
What is the AMPLITUDE of the voltage that
comes into your home??
120V is the ‘rms’ value. (Did you know that??)
Average = ZERO
A series R-L-C circuit is connected to a 120 Hzac source that has Vrms = 80.0 V. The circuit has a resistance of 80.0 Wand an impedance of 106 Wat this frequency.
What average power is delivered to the circuit by the source?