Dokar Ampere
Masanin kimiyya ɗan ƙasar Faransa Andre Marie Ampère (1775–1836) ya gabatar da alaƙa ta gaba ɗaya tsakanin wutar lantarki da ke gudana ta kowace na'urar jagoranci da kuma filin maganadisu da ake samarwa a kusa da ita. Wannan ita ce Dokar Ampère. Lissafin da ke ƙasa yana bayyana Dokar Ampère.
—–> Dokar Ampere
Jimlar sassan (Σ) na filin maganadisu (B) daidai da tsawon naúrar mai jagora, ninka tsawon naúrar mai jagora (∆l), daidai yake da samfurin µo ( µo = 4π x 10 -7 Tm/A) da kuma wutar lantarki (I).
Mai sarrafa da'ira yana samar da MMagnet Mai Hauka
Idan mai jagora yana da zagaye, to jimlar tsawon raka'o'in mai jagora shine zagayen da'irar, don haka dabarar dokar Ampere da ke sama ta canza zuwa:
—–> Tsarin dokar Ampere na masu sarrafa da'ira
Bayanin dabara:
B = filin maganadisu (Tesla)
µ o = Madaidaicin maganadisu ko kuma ikon shiga sararin samaniya kyauta (4π x 10 -7 T m/A)
I = Wutar lantarki (Ampere)
r = radius na da'ira (mita)
Dalilan Solenoid Filin Magnetic
Solenoid doguwar na'urar waya ce mai madaukai da yawa, kamar yadda aka nuna a hoton da ke ƙasa.
I = Wutar lantarki, B = Filin maganadisu
Kibiyoyi suna nuna alkiblar wutar lantarki da kuma alkiblar filin maganadisu.
Tsarin filin maganadisu da solenoid ya samar shine:
—–> Tsarin dokar Ampere don jagorar mai siffar solenoid
Bayanin dabara:
B = filin maganadisu (Tesla)
µ o = Madaidaicin maganadisu ko kuma ikon shiga sararin samaniya kyauta (4π x 10 -7 T m/A)
n = n/L = Adadin madaukai (n) a kowane tsawon raka'a (L)
I = Wutar lantarki (Ampere)
Ma'anar 1 Ampere
Ampere wani yanki ne na wutar lantarki, inda wannan adadi bai tsaya shi kaɗai ba amma yana da alaƙa da sauran adadi na zahiri. Batun ƙarfin maganadisu tsakanin wayoyi biyu madaidaiciya masu layi ɗaya waɗanda ke ɗauke da wutar lantarki ya bayyana dabarar da ke bayyana alaƙar da ke tsakanin ƙarfin maganadisu a kowane raka'a tsawon mai jagoran (F/L) da wutar lantarki (I) a cikin kowane mai jagoran da kuma nisan da ke tsakanin masu jagoran biyu (l) , kamar yadda aka nuna a ƙasa.
Idan wutar lantarki da ke gudana a cikin kowace na'ura mai sarrafawa ita ce 1 Ampere kuma nisan da ke tsakanin na'urorin biyu mita 1 ne, to ƙimar F/L ita ce:
Dangane da ƙimar F/L da ke sama, 1 Ampere shine wutar lantarki da ke gudana a cikin kowanne daga cikin dogayen masu jagoranci guda biyu masu layi ɗaya waɗanda aka raba ta mita 1 kuma suna samar da ƙarfin maganadisu na mai jagoran N/m 2 x 10 -7.
