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What is meant by "reactance"? How do
you determine the reactance of a
capacitor? an inductor?
什么是‘电抗’？如何确定电容器和电感器的电抗？
What form does Ohm's Law take for
reactive elements like capacitors
and inductors?
对于电容器和电感器这样的反应元件，欧姆定律的形式是什么？
How is the phase of the current in
a capacitor related to the phase
of the voltage across the capacitor?
电容器中电流的相位与电容器两端电压的相位之间有什么关系？
How is the phase of the current in
an inductor related to the phase
of the voltage across the inductor?
电感器中电流的相位与电感器两端电压的相位之间有什么关系？
What is meant by impedance? What
is the unit of impedance?
什么是阻抗？阻抗的单位是什么？
How is the impedance of an RC series
circuit determined? an RL circuit?
如何确定RC串联电路和RL电路的阻抗？
How do you calculate the impedance of
a RLC circuit?
如何计算RLC电路的阻抗？
What is meant by resonance of an RLC
series circuit? Describe the properties of the
circuit at resonance. How is the
resonant frequency calculated?
什么是RLC串联电路的共振？描述电路在共振时的特性。共振频率是如何计算的？
How is power calculated in AC circuits?
What is meant by the power factor?
Why are rms values of current and voltage used?
在交流电路中如何计算功率？什么是功率因数？为什么使用电流和电压的均方根值？
Describe the function of a transformer
in AC circuits. Show how the primary and
secondary currents are calculated.
描述变压器在交流电路中的作用。展示如何计算初级和次级电流。
Why are the outputs of electric power
plants elevated to extremely high
voltages with transformers for cross-
country transmission?
为什么电力工厂的输出电压要通过变压器提升到极高的电压以实现跨国家的传输？
Describe how the 120 volts AC and 240 volts AC
are obtained in standard U.S. household wiring.
描述如何在标准的美国家庭布线中获得120伏交流电和240伏交流电。
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