Ka taea e te pūnga hiko te mahi mēnā kāore ngā pereti/pepa arataki e rua e pā tetahi ki tetahi, kia kore ai te utu hiko e neke mai i tetahi arataki ki tetahi. Waihoki, kia kore ai te utu hiko e neke mai i te arataki ki te hau, me waiho te wāhi i waenganui i ngā arataki e rua hei korehau. I roto i te tuhinga mō ngā pūnga hiko pereti whakarara, kua kōrerohia te kaha o te pūnga hiko pereti whakarara , i reira ka wehea ngā pereti e rua e te korehau. He herenga tō te kaha o te pūnga hiko i roto i te korehau, nō reira hei whakanui ake i te kaha, ka whakatakotoria he dielectric i waenganui i ngā pereti/pepa arataki e rua.
Ko te matū-whakarewa he ārai e wehewehe ana i ngā pereti kawe hiko e rua o te pūnga hiko. Ko te matū-whakarewa he rauemi kāore e taea te kawe hiko, pērā i te kirihou, te karāhe, te pepa, te rakau rānei. Ko te mahi a te matū-whakarewa he whakanui i te kaha, e āhei ai te pūnga hiko ki te penapena i te nui o te utu hiko me te pūngao pūmanawa.
Ka whakanuia e ngā dielectrics te kaha o te hiko nā te mea ka whakaitihia te pūmanawa hiko i waenga i ngā pereti kawe hiko e rua.
He aha i piki ake ai te kaha o te pūnga i muri i te whakatakotoranga o te dielectric i waenganui i ngā pereti/pepa arataki e rua? Hei kimi i te whakautu ki tēnei pātai, mahara ki te akoranga mō Utu hikoPērā i ngā utu hiko e pana ana tetahi i tetahi, engari ko ngā utu hiko rerekē e kukume ana tetahi i tetahi. Hei tauira, ka kukume ngā utu pai tetahi i tetahi. 
he utu kino, engari he peia e te utu pai. He aha rā te take ka taea ai e te kirihou utu kino te kukume i ngā wahi iti o te pepa kāore i te utu hiko? Ka puta tēnei nā te mea ka pāngia ngā wahi pepa e te pōraruraru utu. Kāore e taea e ngā irahiko i roto i ngā rauemi ārai pēnei i te pepa te neke noa pērā i ngā irahiko i roto i ngā rauemi kawe. Nō reira, ina whakatatahia te kirihou utu kino ki ngā wahi pepa, ka peia ngā irahiko e herea ana ki ngā ngota kia matara atu i te kirihou utu kino, ka hua ake te pōraruraru o te utu kino me te utu pai i runga i te pepa. Kei tawhiti atu te utu kino i runga i te pepa i te kirihou, ko te utu pai i runga i te pepa kei te tata atu ki te kirihou. Hei tāpiri, ka kukume te utu kino i runga i te kirihou i te utu pai i runga i ngā wahi pepa kia tata atu rā anō te pepa māmā ki te kirihou.
Ko te tukanga whakapūtātanga, te whakapūtātanga utu rānei, e puta ana i roto i tētahi pepa he rite ki te whakapūtātanga utu e puta ana i roto i tētahi dielectric. Hei tauira, e whakaaturia ana i te ahua i te taha maui, i te tīmatanga e rua noa iho ngā pereti arataki hiko kua utaina. Ko te pereti maui he utu pai, ko te pereti matau he utu kino, nō reira ko te ahunga o te mara hiko mai i te maui ki te matau.
I muri i te whakatakotoranga o te dielectric i waenganui i ngā pereti arataki e rua, ka kukume te utu pai i te pereti maui i ngā irahiko i runga i te mata dielectric tata, ā, ka panaia e te utu kino i te pereti matau ngā irahiko i runga i te mata dielectric tata. Kāore ngā irahiko i roto i te dielectric, he ārai hiko, e neke noa ana pērā i ngā irahiko i roto i te arataki. Nō reira, ka herea tonu ngā irahiko ki ngā ngota, engari he pōraritanga o ngā irahiko utu kino me ngā porotona utu pai, e whakaaturia ana i te pikitia. Ko te noho mai o te utu pai i te taha matau o ngā ngota dielectric me te utu kino i te taha maui o ngā ngota dielectric ka hanga he mara hiko e anga ana mai i te matau ki te maui, ā, ka ngoikore te mara hiko i hangaia e te utu hiko i runga i te pereti arataki e anga ana mai i te maui ki te matau. Nō reira, ka heke te mara hiko ehara i te mea nā te mea ka heke te utu hiko i runga i ngā pereti/pepa arataki e rua engari nā te mea ka puta he mara hiko i roto i te dielectric kei te taha ke. Ina tangohia te dielectric, ka hoki te kaha o te mara hiko i hangaia e te utu hiko i runga i ngā pereti/pepa arataki e rua ki tōna āhua taketake.
Ki te heke te kaha o te papa hiko i hangaia e te utu hiko i runga i ngā pereti arataki e rua, ka heke anō hoki te pūmanawa hiko i waenganui i ngā pereti arataki e rua nā te papa hiko.
He rite tonu te hiko ki te pūmanawa hiko e ai ki te whārite E = V / d, ko E = te papa hiko, V = pūmanawa hiko, me d = te tawhiti i waenganui i ngā pereti e rua. Mēnā i mua i te wā he matū hiko-kore, ko V te pūmanawa hiko.o Nō reira, i muri i te putanga mai o te dielectric, ka whakaitihia te pūmanawa hiko ki V mā te tauwehenga o K. Mā te pāngarau, ko Vo = KV, V rānei = Vo / K, K rānei = Vo / V, ko K = te pūmau hiko-kore. Vo > V kia>1 ai a K.
Me mōhio ko te nui o te utu hiko i runga i ngā pereti/pepa arataki e rua kāore e rerekē, nō reira ka rite te nui o te utu whakamutunga ki te nui o te utu tīmatanga (Q = Qo). Ka tatauhia te panonitanga o te kaha o te kaha mā te whakamahi i te tātai e whai ake nei:
Whakaahuatanga tātai: C = te kaha whakamutunga, C o = te kaha tīmatanga, Q = te utu whakamutunga, Q o = te utu tīmatanga, V = te pūmanawa whakamutunga, V o = te pūmanawa tīmatanga, K = te pūmau ārai-hiko
I runga i te whārite i runga ake nei, ka whakatauhia ko te kaha tīmatanga (C o ) he iti ake ia te kaha whakamutunga (C). Ka piki ake te kaha mā te tauwehe o K, ko K te pūmau dielectric. He rerekē te uara pūmau dielectric o ia rauemi ārai. Ko te pūmau dielectric (K) te hua o te whakataurite i te kaha o te capacitor i te wā e whakamahia ana he dielectric ki te kaha o te capacitor i te wā kāore e whakamahia he dielectric.
Ka whakanuia e ngā dielectrics te kaha o te hiko nā te mea ka whakaitihia te tawhiti i waenganui i ngā pereti arataki e rua.
Ko tētahi atu mahi a te dielectric ko te whakaiti i te tawhiti (d) i waenganui i ngā pereti arataki e rua kia piki ake ai te mara hiko (E) me te ngaohiko hiko (V) i waenganui i ngā pereti/pepa arataki e rua e ai ki te whārite E = V / d. Mēnā ka piki ake te mara hiko me te ngaohiko hiko i waenganui i ngā pereti/pepa e rua, ka piki ake te kaha o te capacitance.
Mena he pereti whakarara te pūnga e pā ana ki tēnei, ka tatauhia tōna pūnga mā te whakamahi i te tātai e whai ake nei:
I runga i ngā tātai e rua i runga ake nei, ka taea te whakatau ko te kaha (C) o te kaha pereti whakarara ka taea te whakanui ake mā te whakaiti i te tawhiti i waenga i ngā pereti/pepa arataki e rua (d).
Ka whakanuia e ngā dielectrics te capacitance nā te mea ka piki ake te kaha dielectric o te capacitor.
He mea hanga ngā dielectrics i ngā rauemi ārai, ā, ina whakanohoia ki roto i tētahi mara hiko tino kaha, ka pakaru. Ka puta te pakaru o te dielectric ina tino kaha te mara hiko ka puta ngā irahiko mai i ngā ngota, ka tukinga ēnei irahiko ki ngā irahiko i roto i ētahi atu ngota, ka puta te rere o te irahiko i roto i te dielectric. Arā, mā te pakaru o te dielectric ka huri te dielectric, he ārai hiko, hei kaiārahi hiko.
Hei karo i te kino, ko ia parenga hiko i hangaia mai i tētahi rauemi ārai motuhake he uara mara hiko mōrahi ka taea e ia te tu atu, e kiia nei ko te kaha parenga hiko. He nui ake te kaha parenga hiko o tētahi rauemi ārai i te kaha parenga hiko o te hau, ā, he rerekē te kaha parenga hiko o ia rauemi ārai, ko ētahi he iti, ko ētahi he nui. Nō reira, ki te whakamahia he parenga hiko he kaha parenga hiko nui, ka nui ake te mara hiko ka taea te pupuri, ā, ka nui ake hoki te ngaohiko hiko ka taea te pupuri. Ki te nui ake te mara hiko me te ngaohiko hiko i hangaia e ngā pereti/pepa arataki e rua, ka nui ake te nui o te utu hiko ka taea te whakauru e te pereti arataki. Ko te nui ake o te utu kei roto i te pereti arataki, ko te nui ake o te kaha o te capacitance.
