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360 UNIT nke Nguzogide. [760.
Enwere ike ikpebi ọnụọgụ atọ ndị a na igwe eletriki doro anya.
Ụzọ ndị a gụnyere ikpebi oge nke vibra tion nke galvanometer magnet, na nke logarithmic decrement nke oscillation ya. -*.
Usoro Weber site na Transient Currents*.
760.] A na-akwanye eriri igwe nke buru ibu na axle, ka ọ dị nwee ike ịtụgharị ihe dịka dayameta kwụ ọtọ. Waya nke a ejikọrọ eriri igwe na nke galvanometer tangent ka ọ na-etolite otu sekit. Ka ihe mgbochi nke sekit a bụrụ R. Ka ndị nnukwu eriri igwe ga-enịm na ya nti ihu perpendicular na magnetik meridian, ka atụgharị ya ngwa ngwa gburugburu ọkara revo lution. A ga-enwe ihe na-akpali akpali n'ihi ụda ụwa ike netic, na mkpokọta ọkụ eletrik na nke a ugbu a in ihe electromagnetic ga-abụ
= ^-. (0
ebe g^ bụ oge magnetik nke eriri igwe maka unit ugbu a, nke n'ihe banyere nnukwu eriri igwe nwere ike ikpebi ozugbo, site na mea na-achọpụta akụkụ nke eriri igwe, na ịgbakọ nchikota nke ebe nke windings. H bụ akụkụ kehoraizin nke terrestrial magnetism, na R bụ nguzogide nke sekit kpụrụ site na eriri igwe na galvanometer ọnụ. Nke a ugbu a na-esetịpụ magnet nke galvanometer na-aga n'ihu.
Ọ bụrụ na magnet na mbụ na-ezu ike, ma ọ bụrụ na mmegharị nke eriri igwe nwere ma obere akụkụ nke oge ịma jijiji nke magnet, mgbe ahụ, ọ bụrụ na anyị na-eleghara iguzogide mmegharị nke magnet, anyị nwere, site na Art. 748,
(2)
ebe G bụ mgbe nile nke galvanometer, T bụ oge nke vibration nke magnetik, na bụ hụrụ elongation. Site na nha nhata ndị a anyị na-enweta
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Uru nke H adịghị apụta na nsonaazụ a, ma ọ bụrụ na ọ bụ otu na ọnọdụ nke eriri igwe na nke galvanometer. E kwesịghị iche na nke a bụ ikpe, mana ekwesịrị iji nwalee ya atụnyere oge ịma jijiji nke otu magnetik, nke mbụ na otu n'ime ebe ndị a na mgbe ahụ na nke ọzọ.
* ElcJct, Maasb. ; ma ọ bụ Pogg., Ann. Ixxxii, 337 (1851).
