Misalan Matsaloli 14 Kan Yin Magnets
1. 
Yin maganadisu ta hanyar shafa shi shine...
Tattaunawa
Ana yin amfani da magnetization ta hanyar shafawa ta hanyar shafa maganadisu a kan abin da za a yi amfani da magnet, inda ake yin gogewa a hanya ɗaya. Sandunan da aka samar a kan abin da aka yi amfani da magnet sun dogara ne akan sandar maganadisu da ake amfani da shi don shafawa. Idan sandar maganadisu da ake amfani da shi don shafawa ita ce sandar arewa, to ƙarshen abin da aka yi amfani da shi don shafawa ya zama sandar kudu. Akasin haka, idan sandar maganadisu da ake amfani da shi don shafawa ita ce sandar kudu, to ƙarshen abin da aka yi amfani da shi don shafawa ya zama sandar arewa.
Amsar da ta dace ita ce C.
2. Filin maganadisu a cikin solenoid wanda aka samar da wutar lantarki iri ɗaya ne da filin maganadisu a cikin...
A. maganadisu na takalmin doki
B. maganadisu mashaya
C. maganadisu mai siffar silinda
D. maganadisu na allura
Tattaunawa
Hoton da ke gefe misali ne na wani solenoid da ke gudana. lissafin lissafinSolenoid wani nau'in waya ne mai juyawa da yawa. Idan wutar lantarki ta ratsa ta cikin solenoid, yana samar da filin maganadisu, inda za a iya gano sandunan maganadisu ta amfani da ƙa'idar hannun dama.
Filin maganadisu da solenoid ke samarwa yana da sandar arewa da kudu, kamar filin maganadisu na halitta. Idan wani abu ya naɗe a kusa da solenoid don ya zama maganadisu, filin maganadisu na wannan abu zai zama iri ɗaya da filin maganadisu da solenoid ke samarwa. Idan abin silinda ne, zai zama maganadisu na silinda. Idan abin silinda ne, zai zama maganadisu na silinda. Idan abin silinda ne, zai zama maganadisu na sanda. Yin maganadisu ta wannan hanyar ana kiransa maganadisu ta hanyar wucewar wutar lantarki ta cikinsa.
Don haka filin maganadisu a cikin solenoid wanda aka ba shi wutar lantarki iri ɗaya ne da filin maganadisu a cikin maganadisu na mashaya ko maganadisu na silinda.
Amsoshin da suka dace sune B da C.
3. 
Dangane da hoton da ke ƙasa, za a iya tantance cewa...
A. A. A. Ƙasa ta Arewa, B. Ƙasa ta Arewa
B. A Tashar Kudu, B Tashar Arewa
C. A Sandar Kudu, B Sandar Kudu
D. A Kan iyaka ta Arewa, B Kan iyaka ta Arewa
Tattaunawa
Wutar lantarki tana gudana daga babban ƙarfin lantarki zuwa ƙaramin ƙarfin lantarki. Ka lura da alamar baturi/emf; babban ƙarfin lantarki yana wakiltar layin dogon layi, yayin da ƙaramin ƙarfin lantarki ke wakiltar layin gajere.
Yi amfani da ƙa'idar hannun dama don tantance alkiblar wutar lantarki da kuma alkiblar filin lantarki. Miƙa hannun dama, a buɗe tafin hannunka, sannan a miƙe babban yatsanka ka lanƙwasa sauran yatsu huɗu. Alkiblar yatsu huɗu da aka lanƙwasa iri ɗaya ce da alkiblar wutar lantarki, kuma alkiblar babban yatsa iri ɗaya ce da alkiblar arewa na filin maganadisu. Don haka, sandar arewa = B da sandar kudu = A.
Amsar da ta dace ita ce B.
4. Kalli hoton coil ɗin da ke ƙasa!
Yadda ake yin wannan maganadisu da sandar da aka yiwa alama X...
A. maganadisu na induction, sandar U
B. electromagnet, sandar U
C. maganadisu na induction, sandar S
D. na'urar lantarki, sandar S
Tattaunawa
Hoton da ke sama yana nuna yadda ake yin maganadisu ta hanyar wucewar wutar lantarki ta cikinsa. Alkiblar kibiya tana nuna alkiblar wutar lantarki. Ana gano sandunan maganadisu ta amfani da ƙa'idar hannun dama.
Miƙa hannun dama ka sanya shi ya zama tafin hannu ya fuskanci sama, ka miƙe babban yatsanka ka lanƙwasa sauran yatsu huɗu. Alkiblar yatsu huɗu da aka lanƙwasa = alkiblar wutar lantarki da alkiblar babban yatsa = alkiblar sandar arewa ta filin maganadisu = sandar X.
Amsar da ta dace ita ce B.
5. Ana iya haɗa sandar ƙarfe ta hanyoyi masu zuwa, sai dai...
A. kawo ƙarfe kusa da maganadisu
B. shafa ƙarfe da maganadisu
C. dumama ƙarfen da aka haɗa da maganadisu
D. gudanar da wutar lantarki ta hanyar ƙarfe
Tattaunawa
Akwai hanyoyi uku na yin maganadisu na ƙarfe: riƙe shi kusa da maganadisu (induction), shafa shi da maganadisu, da kuma wuce wutar lantarki ta cikinsa. Waɗannan hanyoyi uku an yi bayani dalla-dalla a cikin tattaunawar tambaya ta ƙarshe.
Amsar da ta dace ita ce C.
6. Bayyana hanyoyi 3 na yin maganadisu!
Tattaunawa
1. Shafa ƙarfe da maganadisu
Ana yin amfani da magnetization ta hanyar shafawa ta hanyar shafa maganadisu a kan abin da za a yi amfani da magnet, inda ake yin gogewa a hanya ɗaya. Sandunan da aka samar a kan abin da aka yi amfani da magnet sun dogara ne akan sandar maganadisu da ake amfani da shi don shafawa. Idan sandar maganadisu da ake amfani da shi don shafawa ita ce sandar arewa, to ƙarshen abin da aka yi amfani da shi don shafawa ya zama sandar kudu. Akasin haka, idan sandar maganadisu da ake amfani da shi don shafawa ita ce sandar kudu, to ƙarshen abin da aka yi amfani da shi don shafawa ya zama sandar arewa.
2. Kawo ƙarfe kusa da maganadisu (hanyar shigarwa)
Magnetization ta hanyar induction ya ƙunshi kawo abin da za a haɗa shi da maganadisu kusa da wani abu da aka riga aka haɗa shi da maganadisu, ba tare da taɓa abubuwa biyu ba. Idan aka kawo ƙarshen abu kusa da sandar arewa ta maganadisu, zai zama sandar kudu. Akasin haka, idan aka kawo ƙarshen abin kusa da sandar kudu, zai zama sandar arewa.
3. Wutar lantarki mai gudana ta cikin ƙarfe
An nuna tsarin yin maganadisu ta hanyar wucewar wutar lantarki ta cikinsa a cikin hoton da ke ƙasa. Ana tantance sandunan maganadisu da suka fito ta amfani da ƙa'idar hannun dama. Sanya hannun damanka a tsaye a gaban fuskarka, tare da tafin hannunka yana fuskantar fuskarka. Lanƙwasa yatsunka huɗu (index, tsakiya, zobe, da ƙananan yatsunka). Alkiblar yatsunka huɗu iri ɗaya ce da alkiblar wutar lantarki a cikin na'urar waya, kuma alkiblar babban yatsanka zuwa dama iri ɗaya ce da alkiblar filin maganadisu. Filin maganadisu koyaushe yana nunawa daga sandar arewa zuwa sandar kudu. Don haka, a cikin hoton C, ƙarshen B shine sandar arewa ta maganadisu, kuma ƙarshen A shine sandar kudu ta maganadisu.
7. Za a yi sandar ƙarfe ta zama maganadisu kamar yadda aka nuna a hoton da ke ƙasa.
Sandunan maganadisu da ke faruwa a cikin sandar ƙarfe sune….
A. A = Tashar Arewa, B = Tashar Arewa
B. A = Sandar Kudu, B = Sandar Kudu
C. A = Tashar Arewa, B = Tashar Kudu
D. A = Sandar Kudu, B = Sandar Arewa
Tattaunawa
Hoton da ke sama yana nuna yadda ake yin maganadisu ta hanyar shafawa.
Magnetization ta hanyar shafawa yana nufin shafa maganadisu a kan abin da za a yi maganadisu, tare da yin shafa a hanya ɗaya. Sandunan da aka samar a kan abin da aka yi maganadisu sun dogara ne akan sandunan maganadisu da aka yi amfani da su wajen shafawa.
Idan sandar maganadisu da ake amfani da ita wajen shafawa ita ce sandar arewa, to ƙarshen abin da ake shafawa zai zama sandar kudu. A gefe guda kuma, idan sandar maganadisu da ake amfani da ita wajen shafawa ita ce sandar kudu, to ƙarshen abin da ake shafawa zai zama sandar arewa.
A cikin hoton da ke sama, ana amfani da sandar kudu don shafawa don haka B = sandar arewa da A = sandar kudu.
Amsar da ta dace ita ce D.
8. Kalli hoton!
AB ya zama maganadisu tare da waɗannan bayanai…..
Tattaunawa
Hoton da ke sama yana nuna yadda ake yin ƙarfe ya zama maganadisu ta hanyar wucewar wutar lantarki ta cikinsa. Karfe abu ne mai tauri na maganadisu, ma'ana idan aka haɗa shi da maganadisu, zai zama maganadisu na dindindin. Misali, ƙarfe misali ne na abu mai laushi na maganadisu, ma'ana idan aka haɗa shi da maganadisu, zai zama maganadisu na ɗan lokaci.
Dangane da hoton da ke sama, wutar lantarki tana gudana daga babban ƙarfin lantarki zuwa ƙarancin ƙarfin lantarki (daga hagu zuwa dama). An san sandunan maganadisu suna amfani da ƙa'idar hannun dama. Miƙa hannun dama, sanya shi don tafin hannun dama ya fuskanci fuskarka. Miƙa babban yatsanka ka lanƙwasa sauran yatsun huɗu gaba zuwa fuskarka. Alkiblar lanƙwasa yatsun huɗu iri ɗaya ce da alkiblar kwararar wutar lantarki a cikin na'urar, yayin da babban yatsa ke nuni zuwa sandar arewa ta filin maganadisu. Babban yatsa yana nuni zuwa ga B, don haka B shine sandar arewa ta maganadisu kuma A shine sandar kudu ta maganadisu.
Amsar da ta dace ita ce C.
9. Ka lura da maganadisu na lantarki da kuma maganadisu na O-P kamar yadda aka nuna a hoton da ke ƙasa.
Idan N da O suka tunkude juna, M – N – O – P bi da bi sandunan maganadisu ne…
A. HANCI
B. SUUS
C. USSU
D. MADARA
Tattaunawa
Hoton da ke hagu yana nuna yadda ake yin maganadisu ta hanyar wucewar wutar lantarki ta cikinsa. Wutar tana gudana daga babban ƙarfin lantarki zuwa ƙaramin ƙarfin lantarki (daga hagu na na'urar zuwa dama na na'urar). Ana iya tantance alkiblar filin maganadisu da alkiblar sandunan maganadisu ta amfani da ƙa'idar hannun dama.
Miƙa hannun damanka, ka sanya shi ya zama tafin hannun damanka yana fuskantar fuskarka. Ka miƙe babban yatsanka ka lanƙwasa sauran yatsu huɗu gaba zuwa fuskarka. Alkiblar lanƙwasa yatsun huɗu iri ɗaya ce da alkiblar kwararar wutar lantarki a cikin na'urar, yayin da babban yatsan ke nuni zuwa sandar arewa ta filin maganadisu. Babban yatsan yana nuni zuwa ga N don haka N shine sandar arewa ta maganadisu kuma M shine sandar kudu ta maganadisu. N da O suna tunkuɗa juna don haka N da O suna da sanda iri ɗaya, wato sandar arewa. Idan O shine sandar arewa to P shine sandar kudu.
Dangane da bayanin da ke sama, za a iya kammala da cewa:
M = sandar kudu (S)
N = sandar arewa (U)
O = sandar arewa (N)
P = sandar kudu (S)
Amsar da ta dace ita ce B.
10. Kalli hoton da ke ƙasa! Tsarin yin maganadisu na PQ banda samar da halayen maganadisu da sanduna shine...
A. A halin yanzu, P shine sandar kudu kuma Q shine sandar arewa.
B. A halin yanzu, P shine sandar arewa kuma Q shine sandar kudu.
C. An gyara, P shine sandar arewa kuma Q shine sandar kudu
D. An gyara, P shine sandar kudu kuma Q shine sandar arewa
Tattaunawa
Hoton da ke sama yana nuna yadda ake yin maganadisu ta hanyar wucewar wutar lantarki ta cikinsa. Karfe da ake maganadisu da shi ƙarfe ne. Karfe abu ne mai tauri na maganadisu; idan aka haɗa shi da maganadisu, sai ya zama maganadisu na dindindin.
Dangane da hoton da ke sama, wutar lantarki tana gudana daga babban ƙarfin lantarki zuwa ƙaramin ƙarfin lantarki (daga hagu na na'urar zuwa dama na na'urar).
Ana gane sandunan maganadisu ta amfani da ƙa'idar hannun dama. Miƙa hannun damanka don ya fuskanci fuskarka. Miƙa babban yatsanka ka lanƙwasa sauran yatsun huɗun gaba zuwa fuskarka. Alkiblar lanƙwasa yatsun huɗun ya yi daidai da alkiblar kwararar wutar lantarki a cikin na'urar, yayin da babban yatsan ke nuni zuwa sandar arewa ta filin maganadisu. Babban yatsan yana nuni zuwa ga Q, don haka Q yana wakiltar sandar arewa ta maganadisu kuma P yana wakiltar sandar kudu ta maganadisu.
Amsar da ta dace ita ce D.
11.
Idan tubalan AB, CD da EF an yi su ne da ƙarfe, me zai faru...
A. E shine sandar kudu kuma C shine sandar arewa
B. B shine sandar arewa kuma C shine sandar kudu
Sandar kudu ta C. D da Sandar kudu ta F
D. A shine sandar arewa kuma E shine sandar arewa
Tattaunawa
Ka yi la'akari da hoton na'urar PQ da aka naɗe a kusa da wayar da ke ɗauke da wutar lantarki. Hoton yana nuna yadda ake yin maganadisu ta hanyar wucewar wutar lantarki ta cikin abin. Ana ƙayyade sandunan maganadisu da suka fito ta amfani da ƙa'idar hannun dama. Sanya hannun damanka a tsaye a gaban fuskarka, tafin hannu sama. fuskantar Fuskarka. Lanƙwasa yatsunka huɗu (index, tsakiya, zobe, da ƙananan yatsunka). Alkiblar yatsunka huɗu iri ɗaya ce da wutar lantarki a cikin na'urar naɗa waya, kuma alkiblar babban yatsanka zuwa dama iri ɗaya ce da alkiblar filin maganadisu. Filin maganadisu koyaushe yana fita daga sandar arewa kuma yana shiga sandar kudu. Don haka Q shine sandar arewa kuma P shine sandar kudu.
Idan an maye gurbin ƙarfe PQ da sandunan ƙarfe EF, AB, CD to matsayin P za a maye gurbinsa da E, A, C kuma matsayin Q za a maye gurbinsa da F, B, D.
Q shine sandar arewa don haka F, B, D suma sandunan arewa ne.
P shine sandar kudu don haka E, A, C suma sandunan kudu ne.
Amsar da ta dace ita ce B.
12. Kula da yadda ake yin maganadisu kamar yadda aka nuna a hoton da ke ƙasa!
Ƙarshen ƙarfe F, G, da I suna zama sandunan maganadisu bi da bi…
A. U, U, da S
B. S, S, da U
C. U, S, da S
D. S, U, da U
Tattaunawa
Ana tantance sandar maganadisu da ta fito ta amfani da ƙa'idar hannun dama. Sanya hannun damanka a tsaye a gaban fuskarka; bayan hannun damanka yana tsaye. fuskantar Fuskarka. Lanƙwasa yatsunka huɗu (index, tsakiya, zobe, da ƙananan yatsunka). Alkiblar yatsunka huɗu iri ɗaya ce da alkiblar wutar lantarki a cikin na'urar waya, kuma alkiblar babban yatsanka na hagu iri ɗaya ce da alkiblar filin maganadisu. Filin maganadisu koyaushe yana fita daga sandar arewa kuma yana shiga sandar kudu. Don haka ƙarshen hagu na ƙarfe shine sandar arewa kuma ƙarshen dama shine sandar kudu.
Idan aka maye gurbin ƙarfe da sandunan ƙarfe EF, GH da IJ to sai a maye gurbin matsayin gefen hagu na ƙarfe da E, G, I kuma a maye gurbin matsayin ƙarshen dama na ƙarfe da F, H, J.
Ƙarfin hagu na ƙarfen shine sandar arewa don haka E, G, I suma sandunan arewa ne.
Ƙarshen dama na ƙarfen shine sandar kudu don haka F, H, J suma sandunan kudu ne.
F shine sandar kudu, G shine sandar arewa, kuma I shine sandar arewa.
Amsar da ta dace ita ce D.
13. Kalli hoton masana'anta mai zuwa!
Sandunan maganadisu da aka samar lokacin yin maganadisu sune...
A. A shine sandar kudu, C shine sandar arewa, kuma E shine sandar arewa
B. B shine sandar arewa, D shine sandar arewa, kuma E shine sandar arewa
Sandar C. B ta arewa, sandar D ta arewa, da sandar F ta arewa
D. C shine sandar arewa, B shine sandar kudu, kuma D shine sandar kudu
Tattaunawa
A shafa ƙa'idar hannun dama a sandar ƙarfe PQ. Q shine sandar arewa kuma P shine sandar kudu. Idan an maye gurbin ƙarfe da sandunan ƙarfe EF, AB, da CD, to matsayin P zai maye gurbin E, A, C, kuma matsayin Q zai maye gurbin F, B, D.
P shine sandar kudu don haka E, A, C sune sandar kudu.
Q shine sandar arewa don haka F, B, D suma sandunan arewa ne.
Amsar da ta dace ita ce C.
14. Kalli hoton!
Sandar ƙarfe AB ta zama maganadisu idan aka taɓa ta da maganadisu na ƙarfe PQ. Tsarin da ya dace don yin maganadisu na ƙarfe PQ shine…
Tattaunawa
Sandar ƙarfe AB, A = sandar arewa da B = sandar kudu.
Magnet ɗin ƙarfe PQ, Q = sandar kudu da P = sandar arewa
Hoton yana nuna yadda ake yin maganadisu ta hanyar wucewar wutar lantarki ta cikinsa. Ana ƙayyade sandunan maganadisu da suka fito ta amfani da dokar hannun dama. Lanƙwasa yatsunka huɗu (index, tsakiya, zobe, da ƙananan yatsunka). Alkiblar yatsunka huɗu iri ɗaya ce da wutar lantarki a cikin na'urar naɗa waya, kuma alkiblar babban yatsanka iri ɗaya ce da alkiblar filin maganadisu. Filin maganadisu koyaushe yana fita daga sandar arewa kuma yana shiga sandar kudu. Sandunan arewa suna a P dan sandar kudu tana Q. Wutar lantarki tana gudana daga babban iko zuwa ƙaramin iko.
Amsar da ta dace ita ce B.
Tushen tambaya:
Tambayoyin Jarrabawar Ƙasa ta Kimiyya ta Makarantar Sakandare/Makarantar Sakandare ta Musulunci
