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Definition of "Normally Closed" |
[NC] The condition of the contacts of a switch or relay that are at rest in the closed position. / In electronics, switches are classified according to the arrangement of their contacts. A pair of contacts is said to be "closed" when current can flow from one to the other. When the contacts are separated by an insulating air gap, they are said to be "open", and no current can flow between them at normal voltages. The terms "make" for closure of contacts and "break" for opening of contacts are also widely used. / Log Periodic Array Antenna, is a multi-element, directional, narrow-beam antenna that operates over a broad band . |
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