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Definition of "Normally Open" |
[NO] The condition of the contacts of a switch or relay that are at rest in the open position. / 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. / A rhombic antenna is a broadband directional antenna co-invented by Edmond Bruce and Harald Friis, mostly commonly used in HF ranges. / designation which states that the contacts of a switch or relay are normally open or not connected. When activated the contacts close or become connected. |
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