. Practical electro-therapeutics and X-ray therapy : with chapters on phototherapy, X-ray in eye surgery, X-ray in dentistry, and medico-legal aspect of the X-ray . Fig. 15.— Fig. 16—Electrical pendulum. trons and becomes positive. The gold leaf electroscope may beused to determine the charges. The electroscope is given a knowncharge by touching its disk with a charged body. If a glass rod 46 PRACTICAL ELECTRO-THERAPEUTICS AND X-RAY THERAPY is rubbed with a piece of silk, it becomes positively charged. Ifthe disk of the electroscope is touched with this rod, the gold leaveswill b
. Practical electro-therapeutics and X-ray therapy : with chapters on phototherapy, X-ray in eye surgery, X-ray in dentistry, and medico-legal aspect of the X-ray . Fig. 15.— Fig. 16—Electrical pendulum. trons and becomes positive. The gold leaf electroscope may beused to determine the charges. The electroscope is given a knowncharge by touching its disk with a charged body. If a glass rod 46 PRACTICAL ELECTRO-THERAPEUTICS AND X-RAY THERAPY is rubbed with a piece of silk, it becomes positively charged. Ifthe disk of the electroscope is touched with this rod, the gold leaveswill become positively charged and will repel each other. Thedistance that the leaves are separated will depend upon the strengthof the charge. The electroscope is now ready for use. If a positively chargedbody is brought near the disk of the electroscope, the leaves willdiverge still further, while, if the body is negatively charged, theleaves will come together. This influence takes place through theair (ether), and is called induction. A thorough understanding ofthis influence will enable one to grasp the principles involved in thestatic machine. CHARGING A BODY BY INDUCTION. By rub
Size: 1670px × 1496px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjecteye, bookyear1912
