摘要:

Two formulas are derived for the capacitance of a flat circular annulus. The first has an accuracy of 1 part in 1000 or better when the ratio of the external to the internal radius lies between 1.1 and ∞ and is exact at ∞. The second,C=34.96R/ln(32R/c) &mgr;&mgr;f, has an accuracy of 1 part in 1000 when the ratio lies between 1.000 and 1.1 and is exact at 1.000. In this formulacis the difference of the radii andRtheir mean value in meters. An approximate expression for the charge density is given in the first case.

ISSN:0021-8979    

DOI:10.1063/1.1699900

出版商:AIP    

年代:1951

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699902

出版商:AIP    

年代:1951

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699903

出版商:AIP    

年代:1951

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699904

出版商:AIP    

年代:1951

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699906

出版商:AIP    

年代:1951

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699907

出版商:AIP    

年代:1951

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699910

出版商:AIP    

年代:1951

数据来源: AIP