Magnetic shigar da

Mun sani cewa yanzu-dauke shugaba sanya a cikin wani Magnetic filin, an hõre wani karfi. Its shugabanci dogara a kan shugabanci na filin Lines da shugabanci na halin yanzu: idan karshen an san, shugabanci na karfi za a iya ƙaddara da yin amfani da hagu-hand mulki ko dama dunƙule.

Bari yanzu mu bincika abin da kayyade darajar wannan karfi. Magana game da kwarewa.

Dakatar da hagu kafada da rocker liba Sikeli mikakke shugaba AB da kuma sanya shi tsakanin sandunan N da S na electromagnet haka da cewa shi ne perpendicular tare da girmamawa ga Magnetic filin Lines. Consistently tare da wannan jagora zai hada wani ammeter da rheostat, da wanda za ka iya auna halin yanzu a cikin wannan shugaba. Daidaita da Sikeli, da kuma kewaye da ake rufe. Bari yanzu a cikin shugaba AB aika daga B zuwa A. A balance nauyi karya. don mayar da shi, a kan hakkin kofin za su sa wani karin raznovesok wanda nauyi ne daidaita da karfi exerted a kan waya tsaye zuwa ƙasa. Za mu canja halin yanzu yanzu mu shugaba. mu lura da cewa a halin yanzu ƙaruwa tare da karuwa da karfi da cewa abubuwa a kan abin hawa. Canje-canje zai nuna mana cewa da karfi tare da wanda Magnetic filin abubuwa a kan shugaba ne kai tsaye na gwargwado ga halin yanzu sunã gudãna shi.

Yana dogara ko ikon da tsawon da shugaba AB? Don warware wannan batu, za mu dauki wayoyi na daban-daban tsawo a wannan halin yanzu. Ma'aunai nuna mana cewa da karfi tare da wanda Magnetic filin rinjayar da na yanzu-dauke shugaba, zai zama kai tsaye na gwargwado ga tsawon da shugaba located in wani Magnetic filin.

Bari F - karfi, wanda abubuwa a kan halin yanzu-dauke da shugaba sanya a cikin wani Magnetic filin, l - tsawon da shugaba da kuma na - yanzu a cikinta.

Tare da canji a cikin tsawon l da shugaba da kuma na yanzu a shi an canza, kamar yadda muka gani, da kuma girma da karfi F.

A rabo daga cikin karfi F zuwa tsawon da shugaba na yanzu na da shi ne akai zaman kanta da na yanzu, a cikinta; saboda haka, wannan rabo na iya faye hali Magnetic filin.

Wannan yawa da aka kira da Magnetic shigar da ko Magnetic shigar da.

Nuna a fakaice Magnetic shigar da harafi B. By definition, wanda zai iya rubuta:

B = F / (I · l).

A SI naúrar na Magnetic shigar da tsarin aikin shigar da filin a cikin abin da shugaba tare da wani halin yanzu na 1 A kuma 1 m dogon ne hõre wani karfi irin Name N. 1 naúrar: 1 Newton / (amper˖metr) (rage tsawon zuwa 1 H / (am)) .

Mun da'awar cewa H 1 / (am) = 1 (V˖sek) / m²:

1 H / (am) = 1 (NM) / (A˖m²) = 1 J / (A˖m²) = 1 (V˖A˖sek) / (A˖m²) = 1 (v s) / m².

Unit 1 volt-biyu kira Weber (WB). Sanadiyar haka, 1 WB / m² ko 1 Tesla (T) - a naúrar na Magnetic shigar da. Ganin cewa a cikin tsarin na ji EMU naúrar na Magnetic shigar da - gauss (G):

1 T = 10⁴ gauss.

Magnetic shigar da - vector yawa. Shugabanci na shigar da vector a wannan lokaci da aka hada kai tare da shugabanci na Magnetic karfi Lines wucewa ta wannan batu.

A SI Magnetic juyi yawa - Magnetic filin da karfi halayyar, kama da yadda lantarki filin nuna ikon halayyar da lantarki filin.

Sanin shigar da Magnetic filin, yana yiwuwa yin lissafi da karfi a kan halin yanzu-dauke shugaba bisa ga dabara:

F = BI l.

A wani halin yanzu-dauke shugaba ba kawai zargin matsawa da ka a daban-daban kwatance, amma kuma a wani shugabanci. Kowace daga cikin cajin rinjayar da Magnetic karfi cewa yana daukar kwayar cutar zuwa ga shugaba. Jimlar duk sojojin daga m motsi ne sifili, da kuma Naira Miliyan Xari da sojojin directed motsi kira da Ampere karfi.

A general, da adadin karfi wanda abubuwa a kan halin yanzu-dauke shugaba sanya a cikin wani Magnetic filin ƙaddara da Ampere dokar:

F = BI l zunubi α, a cikinsa α - kwana tsakanin halin yanzu shugabanci (I) da kuma Magnetic filin vector (B).

Magnetic filin shigar da shi ne numerically daidaita da karfi wanda rinjayar da Magnetic filin da naúrar halin yanzu kashi zubar perpendicular zuwa vector na shigar da. Magnetic shigar da tushen a kan kafofin watsa labarai Properties.