Comparison of radio-frequency standards

• Publisher: Elsevier Science
• Year: 1936
• Tongue: English
• Weight: 47 KB
• Volume: 222
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(36)90999-7

✦ Synopsis

633

be referred to a standard that is furnished by some standardizing laboratory. However, occasions frequently arise where the relationships between the units in the electrical system, and those in the mechanical system are required. For example, it often becomes necessary to compute the force which is exerted between two bus-bars that carry heavy currents. If these bus-bars are not sufficiently well fastened to their insulating support, the electromagnetic forces with high currents may become great enough to loosen them. The computation of the force between conductors can readily be accomplished when the basis of the electromagnetic system is understood. The underlying principles by which the system of units is established are made clear in a paper by Dr. H. L. Curtis, which will appear in an early number of the American Physics Teacher.