A Mercury-arc valve is a type of electrical switch that utilizes a pool of mercury to create an electrical conductive path. It is an early form of a semiconductor device that was used primarily in high-power applications, particularly in the field of power electronics. Here are some key features of mercury-arc valves: 1. **Construction**: The valve consists of a sealed container filled with mercury. When electrical voltage is applied, the mercury can be vaporized, creating an arc that conducts electricity.
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