. The principles underlying radio communication . -fourthas large could be used for the same power. As an illustration, if it isdesired to use I kw. at 12,000 volts, with 1,000 sparks per second, 2X106X500 „ _ . , .5= \ 1000X144X106 Knowing the total capacity required, the number of sheets of dielec-tric required to make up the condenser is obtained from the formula, 1 nS C=^X.^y (88) DESIGN FORMULAS. 385 where K is the dielectric constant of the insulating material, n is thenumber of sheets of dielectric, S is the area of each sheit in squarecentimeters, t is the thick
. The principles underlying radio communication . -fourthas large could be used for the same power. As an illustration, if it isdesired to use I kw. at 12,000 volts, with 1,000 sparks per second, 2X106X500 „ _ . , .5= \ 1000X144X106 Knowing the total capacity required, the number of sheets of dielec-tric required to make up the condenser is obtained from the formula, 1 nS C=^X.^y (88) DESIGN FORMULAS. 385 where K is the dielectric constant of the insulating material, n is thenumber of sheets of dielectric, S is the area of each sheit in squarecentimeters, t is the thickness in centimeters, and C is the capacityin microfarads. Supposing that mica is not available, it may be re-quired to find the number of sheets of glass required to make up thecondenser of microfarad required above. Suppose the sheets are15 by 20 cm., cm. thick, and the dielectric constant is 7. Substi-tuting in the formula just given, XlQfi** X 7 X15 X 20 ^ Thus nine sheets of this dielectric are needed. Fia. 207. rtelix^ round wir«
Size: 1847px × 1353px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublisherwashi, bookyear1922
