Umthetho ka-Ampere
Usosayensi waseFrance u-Andre Marie Ampère (1775–1836) waphakamisa ubudlelwano obujwayelekile phakathi kwamandla kagesi ageleza kunoma yimuphi umqhubi kanye nensimu yamagnetic ekhiqizwa nxazonke zawo. Lona uMthetho ka-Ampère. Isibalo esingezansi siveza umthetho ka-Ampère.
—–> Umthetho ka-Ampere
Isamba sezingxenye (Σ) zensimu kazibuthe (B) esihambisana nobude beyunithi yomqhubi, siphindaphinda ubude beyunithi yomqhubi (∆l), silingana nomkhiqizo we-µo (µo = 4π x 10-7 Tm/A) ngogesi (I).
Umqhubi oyindilinga ukhiqiza i-MUmazibuthe Ohlanyayo
Uma umqhubi eyindilinga, khona-ke isamba samayunithi obude bomqhubi siyindilinga yesiyingi, ukuze ifomula yomthetho we-Ampere engenhla ishintshe ibe yi:
—–> Ifomula yomthetho ka-Ampere yabaqhubi abayindilinga
Incazelo yefomula:
B = insimu yamagnetic (iTesla)
µo = Ukungaguquguquki okunamandla noma ukuvuleka kwe-vacuum (4π x 10)-7 T m/A)
I = Amandla kagesi (i-Ampere)
r = irediyasi yesiyingi (amamitha)
Izimbangela ze-Solenoid Insimu Kamagnetic
I-solenoid iyi-coil ende yocingo enezihibe eziningi, njengoba kuboniswe esithombeni esingezansi.
I = Amandla kagesi, B = Insimu yamagnetic
Imicibisholo ikhombisa isiqondiso samandla kagesi kanye nesiqondiso sensimu yamagnetic.
Ifomula yensimu yamagnetic ekhiqizwa yi-solenoid yile:
—–> Ifomula yomthetho ka-Ampere yomqhubi omise okwe-solenoid
Incazelo yefomula:
B = insimu yamagnetic (iTesla)
µo = Ukungaguquguquki okunamandla noma ukuvuleka kwe-vacuum (4π x 10)-7 T m/A)
n = n/L = Inani lama-loops (n) ngobude beyunithi (L)
I = Amandla kagesi (i-Ampere)
Incazelo ye-Ampere eyi-1
I-ampere iyiyunithi yamandla kagesi, futhi leli nani alizimele lodwa kodwa lihlobene nezinye izinto ezibonakalayo. Isihloko sengxoxo Amandla kazibuthe phakathi kwezintambo ezimbili eziqondile ezihambisanayo ezithwala ugesi uchaze ifomula echaza ubudlelwano phakathi kwamandla kazibuthe ngeyunithi ngayinye yobude bomqhubi (F/L) kanye nogesi (I) ku- umqhubi i-serta ibanga phakathi kwabaqhubi ababili (l), njengoba kuboniswe ngezansi.
Aphabila ugesi wamanje Ukugeleza kwamandla kagesi kumqhubi ngamunye kungu-1 Ampere kanti ibanga eliphakathi kwabaqhubi ababili liyimitha eli-1, khona-ke inani le-F/L lingu:
Ngokusekelwe enanini le-F/L elingenhla, i-1 Ampere ingugesi ogeleza ku-conductor ngayinye ende ehambisanayo ehlukaniswe ibanga lemitha eli-1 futhi ikhiqiza amandla kazibuthe angu-2 x 10.-7 Umqhubi we-N/m.
