Te ture a Ampere mō te EMF i puta mai i te whakawhiti

Ngā tauira pātai me ngā tātai mō te ture a Ampere mō te EMF i puta mai i te whakawhiti

Te Ture a Ampere

1. E ai ki a H.C. Oersted, ka puta he papa aukume i te au hiko. I te whakawhanake i tēnei ariā, ka puta hoki he papa aukume i te koiri e kawe ana i te au hiko. Ko te koiri e kawe ana i te au hiko, ka puta he papa aukume e rite ana ki te mea i hangaia e te aukume pae ko...

A. tōroidi
B. solenoid
C. waea takai
D. koiri tapawhā

Kōrero

E rua ngā pou o te aukume pae: he pou raki me he pou tonga. Ko te papa aukume i hangaia e te aukume pae e tohuhia ana e ngā rārangi papa aukume, e ahu mai ana i te pou raki ka tomo ki te pou tonga.
He rite te papa aukume i hangaia e te aukume pae ki te papa aukume i hangaia e te solenoid, pērā i te pikitia kei te taha.
He porowhita waea roa te solenoid, he maha ngā takahuri. E whakaatu ana te ahua i raro nei i tētahi tauira o te hanga aukume mā te takai i tētahi porowhita waea e mau ana i te iahiko hiko huri noa. Ka taea te whakatau i te ahunga o ngā pou aukume mā te whakamahi i te ture ringa-matau.
Totorohia tō ringa matau, kia anga atu te nikau ki tō mata. Totorohia tō koromatua, ka pikohia ngā maihao e whā ki mua ki tō mata. Ko te ahunga o ngā piko o ngā maihao e whā e rite ana ki te ahunga o te rere o te iahiko i roto i te koiri, ko te koromatua ia e tohu ana ki te pou raki o te papa aukume. Ko te koromatua e tohu ana ki te tuaka N, nō reira ko N te pou raki o te aukume, ā, ko M te pou tonga o te aukume.
Ko te whakautu tika ko B.

Toroi

2. He ahunga tō te papa aukume i hangaia e te tōroid e kawe ana i te iahiko hiko….

A. poutū ki te papa o te toroid
B. porowhita
C. whakamuri, whakamuri
D. e whakawhirinaki ana ki te wā

Kōrero
He porowhita te tōroid, nō reira mā te whakamahi i te ture ringa matau, he porowhita te ahunga o te papa aukume i hangaia e te tōroid.
Ko te whakautu tika ko B.

EMF Whakaoho

3. Ki te nekehia he aukume ki roto i te koiri, ka puta he kaha hiko i waenganui i ngā pito o te koiri. Nā te...
A. He panoni kei te ahunga o te papa aukume e tapahi ana i te koiri.
B. he panoni kei roto i ngā pou aukume e tapahi ana i te koiri
C. He panoni kei roto i te maha o ngā rārangi kaha aukume e tapahi ana i te koiri.
D. kua heke te maha o ngā rārangi kaha aukume e tapahi ana i te koiri
Kōrero
Ka puta te kaha hiko whakaohooho i te mea he papa aukume e huri haere ana. Kāore te rahi o te EMF whakaohooho e whakawhirinaki ana ki te tere o te huringa o te papa aukume engari ki te tere o te huringa o te rerenga aukume. Ko te rerenga aukume te maha o ngā rārangi papa aukume e haere ana i roto i te koiri. Ko te tātai pāngarau mō te rerenga aukume ko Φ_B = BA cos θ. Mena he poutū ngā rārangi aukume ki te horahanga mata o te koiri, ko te koki i hangaia i waenganui i ngā rārangi aukume me te rārangi noa ko te 0._o, ko te kosinī he 0_o = 1. Mena he rite ngā rārangi aukume ki te horahanga mata o te koiri, ko te koki i hangaia he 90^o, ko te kosinī he 90^o = 0. Nō reira, he iti rawa te uara o te rerenga aukume ina he rite ngā rārangi papa aukume ki te horahanga mata o te koiri, ā, he mōrahi ina he poutū ngā rārangi papa aukume ki te horahanga mata o te koiri.
Ka tatauhia te rahi o te emf whakaoho mā te whakamahi i te ture a Faraday mō te tātai whakaoho:

Ko te tohu kino e tohu ana ka whakaputahia e te kaha hiko whakaaweawe he iahiko i te ahunga ke atu i te pūtake o te huringa rerenga. Ko te ture a Lenz te ingoa o tēnei kōrero.
Ko te whakautu tika ko C.

4. Ka piki haere te EMF whakaohooho e puta ana i roto i te koiri i runga i te rārangi i te roanga o te wā. Mena ka noho pūmau te horahanga o te mata o te koiri, ā, he poutū te papa aukume ki te mata o te koiri, ko te kauwhata papa aukume pea mō tēnei āhuatanga ko….

Kōrero
Ka tatauhia te rahi o te emf whakaoho mā te whakamahi i te ture a Faraday mō te tātai whakaoho:

Mena kei te poutū te papa hiko ki te mata o te koiri, kāti:

Ngā Mōhiohio:

Mena kei te poutū te papa aukume ki te mata o te koiri, ko te tātai rerenga aukume ko:

B = papa aukume, A = horahanga mata o te koiri.
He uara pumau tō te horahanga mata o te koiri, ā, he poutū te papa aukume ki te mata o te koiri, nō reira he uara pumau tōna.
Nō reira, i runga i te tātai i runga ake nei, ka taea te whakatau ko te mea e awe ana i te uara o te emf whakaoho ko te tere o te huringa o te rerenga, ki te nui ake te tere o te huringa o te rerenga, ka nui ake te emf whakaoho.
Ko te whakautu tika ko B.

pūtahuri

5. Kia aro ki te kōrero e whai ake nei!
1. He iti iho te maha o ngā takai tuatahi i te maha o ngā takai tuarua
2. He nui ake te ngaohiko tuatahi i te ngaohiko tuarua
3. He nui ake te iahiko tuatahi i te iahiko tuarua
4. He iti ake te mana tuatahi i te mana tuarua
Ko te kōrero e pā ana ki ngā āhuatanga o te whakawhiti hiko whakarunga ko….
A. ngā kōrero 1 me te 2
B. ngā kōrero 1 me te 3
C. ngā kōrero 2 me te 3
D. ngā kōrero 2 me te 4
Kōrero
He taputapu te whakawhiti hiko hei whakarerekē i te ngaohiko o te au hiko hurihuri (AC). E rua ngā momo whakawhiti hiko: ko ngā whakawhiti hiko piki-ake me ngā whakawhiti hiko heke-ake. Ka whakanui ake ngā whakawhiti hiko piki-ake, ko ngā whakawhiti hiko heke-ake ia ka whakaiti i te ngaohiko.
Ko te mahi a te whakawhiti hiko whakaneke he whakanui i te ngaohiko kia penei ōna āhuatanga:
1. He iti ake te ngaohiko tuatahi, he nui ake te ngaohiko tuarua
2. He nui ake te iahiko tuatahi, he iti ake te iahiko tuarua
3. He iti ake te maha o ngā takahuri tuatahi, he nui ake te maha o ngā takahuri tuarua

Ko ngā āhuatanga o te mahi a te whakawhiti hiko whakaheke-iti ki te whakaiti i te ngaohiko kia pēnei ai ngā āhuatanga:
1. He nui ake te ngaohiko tuatahi, he iti ake te ngaohiko tuarua
2. He iti ake te iahiko tuatahi, he nui ake te iahiko tuarua
2. He nui ake ngā takahuri tuatahi, he iti ake ngā takahuri tuarua.

Ko te mana hiko te pūngao hiko e whakamahia ana i roto i tētahi wā motuhake. Ka tiakina te pūngao, nō reira ka tiakina hoki te mana. Nō reira, he ōrite te pūngao hiko i roto i te pōkai tuatahi ki te pūngao hiko i roto i te pōkai tuarua, ā, he ōrite anō hoki te mana hiko.
Tātai mana hiko:
P = VI
Whakaahuatanga: P = mana hiko, V = ngaohiko hiko, I = iahiko hiko
Mana pumau, nō reira, i runga i tēnei tātai, ka whakatauhia mēnā he nui te ngaohiko hiko, he iti te iahiko hiko, ā, he pumau te hua o te ngaohiko hiko me te iahiko hiko.
Ko te whakautu tika ko B.