2. The plot below shows the voltage (solid line) and current (dashed line) in a device that is connected to an ac power supply. The maximum voltage is 30 mV and the maximum current is 90 mA. (a) What are the period, frequency, and angular frequency of the ac power supply? (b) What is the reactance of the device? · (c) Is the device a capacitor or inductor? (d) If the device is a capacitor, then what is its capacitance? If the device is an inductor, then what is its inductance? 0.01 0.020 0.030 0.040 time (s)

2. The plot below shows the voltage (solid line) and current (dashed line) in a device that is connected to an ac power supply. The maximum voltage is 30 mV and the maximum current is 90 mA. (a) What are the period, frequency, and angular frequency of the ac power supply? (b) What is the reactance of the device? · (c) Is the device a capacitor or inductor? (d) If the device is a capacitor, then what is its capacitance? If the device is an inductor, then what is its inductance? 0.01 0.020 0.030 0.040 time (s)

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter33: Inductors And Ac Circuits

Section: Chapter Questions

Problem 80PQ

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