The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, Literature and General Information, المجلدات 9-10Hugh Chrisholm University Press, 1910 |
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الصفحة 176
... electrification from the glass during its passage from the rubber to the collecting points . Nairne's machine could ... electrified . Suppose that A ' and B ' are then made to change places . To do this we shall have to exert energy to ...
... electrification from the glass during its passage from the rubber to the collecting points . Nairne's machine could ... electrified . Suppose that A ' and B ' are then made to change places . To do this we shall have to exert energy to ...
الصفحة 177
... electrified field plate , and the ball positively charged its charge to the positively electrified field plate , by touching little contact springs . In this manner the field plates accumulate charges of opposite sign . FIG . 4 ...
... electrified field plate , and the ball positively charged its charge to the positively electrified field plate , by touching little contact springs . In this manner the field plates accumulate charges of opposite sign . FIG . 4 ...
الصفحة 178
... electrified negatively on both sides and the lower half positively on both sides , the sign of the electrification being reversed as the disk passes between the combs and the armature by discharges issuing from them respectively . If it ...
... electrified negatively on both sides and the lower half positively on both sides , the sign of the electrification being reversed as the disk passes between the combs and the armature by discharges issuing from them respectively . If it ...
الصفحة 180
... electrified by friction , but that to electrify conductors they must be insulated or supported on non - conductors . Various improvements were made in the electrical machine , and thereby experimentalists were provided with the means of ...
... electrified by friction , but that to electrify conductors they must be insulated or supported on non - conductors . Various improvements were made in the electrical machine , and thereby experimentalists were provided with the means of ...
الصفحة 181
... electrified body can produce charges of electricity upon another insulated body , and that when this last is touched it is left electrified with a charge of opposite sign to that of the inducing charge ( Phil . Trans . , 1753– 1754 ) ...
... electrified body can produce charges of electricity upon another insulated body , and that when this last is touched it is left electrified with a charge of opposite sign to that of the inducing charge ( Phil . Trans . , 1753– 1754 ) ...
عبارات ومصطلحات مألوفة
acid action al-din Alexandria alternating current amirs ancient angles army became body British Cairo caliph called canal centre century charge chemical church circuit conductor connexion copper Coptic curve death density desert dielectric direction disk distance dynamo Edwards eggs Egyptian electric current electric force electrified electrodes electrolyte electromagnetic electromotive force electroscope elements England English equation Greek important induction insulated ions iron J. J. Thomson Khartum khedive king Kingdom land later Leyden jar London Lord magnetic force Mahommed Malik Mamelukes measure Mehemet Mehemet Ali ment metal monuments native Nile Osman Digna Pasha period plane plate position potential pressure produced quantity railway reign result Roman solution strain stress Suakin Sudan sultan surface Syria temple theory tion tombs town traction troops unit Upper Egypt Wadi Halfa waves wire XIIth Dynasty