Izibonelo ezi-5 zezinkinga zokungeniswa kwamagnetic
1. Indlela efanele yomugqa wamandla iboniswa yisibalo...
Ingxoxo
Ukunyakaza okujikelezayo kumelela isiqondiso samandla kagesi, kuyilapho ukunyakaza komugqa oqondile kumelela isiqondiso sensimu yamagnetic.
Ngokomthetho wesandla sokudla, goqa iminwe emine yesandla sakho sokudla entendeni yesandla sakho bese uqondisa isithupha sakho. Iminwe emine egobile ikhombisa indlela kagesi ohamba ngayo, kanti isithupha sibonisa indlela insimu yamagnetic ehamba ngayo.
Impendulo efanele ngu-A.
2. Isithombe esifanele sensimu yamagnetic ngokuya ngesiqondiso samandla kagesi kumqhubi...
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Isiqondiso samandla kagesi kanye nesiqondiso sensimu yamagnetic kunqunywa kusetshenziswa umthetho wesandla sokudla. Yelula isandla sakho sokunene, qondisa isithupha sakho, bese ugoba eminye iminwe emine. Isiqondiso esigobayo sesithupha sifana nesiqondiso samandla kagesi, kanti isithupha sifana nesiqondiso sensimu yamagnetic.
Impendulo efanele ngu-A.
3. Ukuphambuka kwenaliti yekhampasi maqondana nesiqondiso samandla kagesi kungatholakala kusetshenziswa umthetho wesandla sokudla. Lo mthetho unqunywa...
A. Oersted
B. Faraday
C. Ampere
D. Lorentz
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Uma inaliti yekhampasi ibekwa eduze kwentambo ephethe ugesi, imagnethi yenaliti yekhampasi, eqala ibheke enyakatho naseningizimu, ishintsha indlela. Ngenxa yokuthi imagnethi ingashukunyiswa kuphela enye imagnethi futhi azikho ezinye imagnethi eduze, kungaphethwa ngokuthi kukhona insimu yamagnetic ezungeze inaliti yekhampasi.
Njengoba kukhona ucingo oluthwala ugesi oluzungeze inaliti kamagnetic, kungaphethwa ngokuthi ugesi ogeleza ngentambo ukhiqiza insimu kamagnetic, ukuze insimu kamagnetic ishukumise inaliti yekhampasi kamagnetic. Lesi simo saqala ukubonwa nguHans Christian Oersted (1777-1851) ngo-1820.
Isiqondiso somsinga kagesi kanye nesiqondiso sensimu yamagnetic kunganqunywa kusetshenziswa umthetho wesandla sokudla. Yelula isandla sakho sokunene, khomba isithupha sakho phezulu, bese ugoqa eminye iminwe yakho emine. Isiqondiso sesithupha (umcibisholo obheke phezulu) sihambisana nesiqondiso somsinga kagesi, kanti isiqondiso seminwe egoqekile sihambisana nesiqondiso sensimu yamagnetic (umcibisholo oyindilinga).
Impendulo efanele ngu-A.
4. Bheka isithombe esilandelayo! Yini engabangela i-emf ebangelwa yi-emf...
A. uma imagnethi ingaphandle kwekhoyili
B. lapho imagnethi ingena futhi iphuma kukhoyili
C. uma imagnethi ikwikhoyili
D. lapho inaliti ye-galvanometer inyakaza
Ingxoxo
Uma i-magnet ingena futhi iphuma kukhoyili, inaliti ye-galvanometer izophambuka. Lokhu kuphambuka kubonisa ukuthi ugesi ugeleza kukhoyili. Ugesi okhiqizwa ngale ndlela ubizwa ngokuthi ugesi okhiqizwayo, kanti inqubo yokukhiqiza ugesi ngendlela ebonisiwe ibizwa ngokuthi ukungeniswa kwe-electromagnetic.
Impendulo efanele ingu-B.
5. Izici eziningana ezithonya ubukhulu be-electromagnetic induction emf:
1. Inani lokujika kwentambo kukhoyili
2. Isiqondiso semigqa yamandla kazibuthe kukhoyili
3. Isivinini sokuhamba kwemagnethi noma ikhoyili
4. Isiqondiso sokugoqa ucingo kukhoyili
Isitatimende esifanele yinombolo…
A. 1 no-3
B. 1 no-4
C. 2 no-4
D. 2 no-3
Ingxoxo
Uma i-magnet ingena futhi iphuma kukhoyili, inaliti ye-galvanometer izophambuka. Lokhu kuphambuka kubonisa ukuthi ugesi ugeleza kukhoyili. Ugesi okhiqizwa ngale ndlela ubizwa ngokuthi ugesi okhiqizwayo, kanti inqubo yokukhiqiza ugesi ngendlela ebonisiwe ibizwa ngokuthi ukungeniswa kwe-electromagnetic.
Ubukhulu bokungeniswa kwe-electromagnetic bunqunywa kusetshenziswa umthetho kaFaraday wokungeniswa:
Izinga lokushintsha kwe-magnetic flux linqunywa ijubane lokunyakaza kwe-magnet noma i-coil.
Impendulo efanele ngu-A.
Umthombo wombuzo:
Imibuzo Yokuhlolwa Kazwelonke Yesayensi Yesikole Samabanga Aphansi/Isikole SamaSulumane Samabanga Aphakeme
