Harmonic analysis can be used to quantify the distortion in voltage and current waveforms in a power system and to determine the existence and mitigation of resonant conditions.

通过谐波分析计算可以确定系统中各部分电压和电流波形的畸变程度、判断系统是否处于谐波谐振状态以及如何采取措施减小系统谐振发生的可能性。

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Because moving charges make currents, and changing magnetic fluxes breed voltages, the new device would generate a voltage from a current rather like a resistor, but in a complex, dynamic way.

因为移动的电荷会产生电流，变化的磁通量会产生电压，新的设备会从电流中产生电压，像电阻一样，不过是以更加复杂、动态的方式。

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Its electric frequency, voltage, and current "are not sufficient to create health issues in a healthy person," Cademartiri said.

它的频率、电压及电流“不足以对健康的人造成健康问题，”Cademartiri解释说。

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Large-scale electricity transmission usually uses alternating current, in which both current and voltage oscillate.

ECONOMIST: Superconductors are starting to become useful

The resin within the carbon layers is laced with lithium ions, so that each layer acts like an electrode, causing the positively charged lithium ions to collect in one layer when a voltage is applied, and a current to flow when the sandwich is placed in a circuit.

ECONOMIST: Carbon-composite batteries

That is the reason why the current emphasis in China is on the construction of 500kv extra-high-voltage lines and long-distance power transmission.

FORBES: Cracking China's Power Sector