Mmiri na-eme ka okirikiri

N'iji akara ike, ọ bụghị naanị na-egosi ntụziaka nke ogwe magnet, kamakwa ọ na-egosi ịdị ukwuu nke ntinye ya.

Anyị kwetara ime ihe ike dị ka ụzọ 1 cm 2 nke mpaghara ahụ, na-adabere na vector mmepụta na ebe ụfọdụ, ọnụ ọgụgụ nke akara na-agafe na ntinye nke ubi n'oge a.

N'ebe ahụ ebe mmebi nke ubi ka ukwuu, usoro nke ike ga-adịkwu. Na, ọzọ, ebe ntinye nke ubi dị obere, obere oge, na akara ike.

N'ihi ya, njupụta nke na ndọta edoghi na-ekpe ikpe na ya itinye n'ọkwa vector ịdị ukwuu na ịdị ntụziaka nke edoghi nke ike - nke ntụziaka nke vector.

Ịchọpụta ihe ntanetị nke magnetị nke ihe dị ugbu a na ihe na-egosi na iwepụ onye nduzi ahụ, ntinye nke oghere magnet na-ebelata, ọzọkwa ngwa ngwa.

A ndọta na itinye n'ọkwa ahaghị na dị iche iche ihe na-akpọ heterogeneous. Field bụ a nonuniform ubi bụ rectilinear na okirikiri ugbu a ubi n'èzí solenoid, ubi nke na-adịgide adịgide magnet , wdg

A na-akpọ oghere magnet nwere otu ihe mmeghe na ihe niile a na-akpọ ya. Graphically homogeneous ndọta-anọchi anya ubi edoghi na-anọchi anya hà spaced yiri e.

Otu ihe atụ nke ubi dị iche iche bụ ubi n'ime ogologo solenoid, dịka nke ọma na ogwe dị n'etiti obere oghere nke otu electromagnet.

Ngwa nke ntinye oghere magnet na-abanye elekere a n'ime mpaghara nke circuit ahụ a na-akpọ ụda magnet nke mmepụta magnet, ma ọ bụ nanị ntinye magnet.

Nkọwa nyere ya ma gụọ ihe onwunwe ya Bekee physicist - Faraday. Ọ chọpụtara na echiche a na-enye anyị ohere ịtụgharị uche n'ụzọ zuru ezu banyere ọdịdị ịdị n'otu nke magnetik na eletriki.

Ịmepụta ihe ndọtị site na mkpụrụedemede%, ebe nke contour S na n'akuku dị n'etiti ntụziaka nke bọtịnụ bọta B na nkịtị n na mpaghara nke contour α, anyị nwere ike ide edemede nha anya:

Ф = В S cos α.

Ndaghari magneti bu ihe di egwu.

Ebe ọ bụ na njedebe nke ike nke ikike magneti na-emeghị ihe ọ bụla dị ka ntinye ya, ụda nke magnet dị ka ọnụ ọgụgụ dum nke ike nke na-ejikọta ngwongwo ahụ.

Site na mgbanwe n'ọhịa ahụ, nzere magnet nke na-agbaba na ngwongwo na-agbanwe: mgbe ogige ahụ na-abawanye, ọ na-abawanye, na nkwụsịtụ na-ebelata.

The unit nke magnetik agbanwe oge na na SI natara iyi nke penetrates mpaghara 1 m² na ịbụ na a homogeneous ndọta na itinye n'ọkwa nke 1 WB / m², na bụ perpendicular na vector nke itinye n'ọkwa. A na - akpọ ụdị a Weber:

1 WB = 1 WB / m² ˖ 1 m².

Agbanwe ụda magné na-emepụta mpaghara eletrik na oghere e mechiri emechi (ogwe ọkụ eletrik vortex). A na-egosipụta ubi dị otú ahụ na onye nduzi dị ka ihe na-eme ka ndị ọzọ nwee ike. A na - akpọ ihe a na - akpọ mmepụta electromagnetic, na ike electromotive, nke na - eme n'ọnọdụ a - EMF induction.

Ọzọkwa, ọ ga-ahụ kwuru a magnetik agbanwe oge na-eme ka o kwe omume mara na n'ozuzu dum magnet (ma ọ bụ ihe ọ bụla ọzọ na isi mmalite nke magnetik n'ubi). Ya mere, ọ bụrụ na ígwé na agbanwe agbanwe oge njupụta na-eme ka o kwe omume mara mmetụta ya nke ọma mgbe ọ bụla otu isi, magnetik agbanwe oge - dị ka a dum. Ee, anyị nwere ike ikwu na nke a bụ nke abụọ kachasị mkpa nke oghere magnet. Ya mere, ọ bụrụ na ntinye nke magnet dị ka njirimara ike nke ogwe magnet, mgbe ahụ, mmụba magnet bụ njirimara ike ya.

Ịlaghachi na nyocha ahụ, anyị nwekwara ike ịsị na a ga-eche na ọkpụkpọ ọ bụla nwere ike iche na ọ bụ otu ụzọ mechiri emechi. Otu sekit nke usoro ntaneti nke vector nke mmepụta magnet ga-agafe. N'okwu a, a ga-ahụ ọkwa eletrik eletrik. Ya mere, ọ bụ n'okpuru nduzi nke magnetik na a na-emepụta ogwe ọkụ na onye nduzi mechiri emechi. Ma elekere elekere a bụ ihe eletrik.