Mlongoti wokhoza kutumiza kapena kulandira mafunde a electromagnetic (EM).Zitsanzo za mafunde a electromagnetic awa akuphatikizapo kuwala kochokera kudzuwa, ndi mafunde omwe amalandiridwa ndi foni yanu.Maso anu akulandira tinyanga tomwe timazindikira mafunde a electromagnetic pafupipafupi."Mumawona mitundu (yofiira, yobiriwira, yabuluu) pamafunde aliwonse. Ofiira ndi abuluu ndi mafunde osiyanasiyana omwe maso anu amatha kuzindikira.
Mafunde onse a electromagnetic amafalikira mumlengalenga kapena mlengalenga pa liwiro lomwelo.Liwiro limeneli ndi pafupifupi $671 miliyoni pa ola (1 biliyoni kilomita pa ola).Liwiro limeneli limatchedwa liwiro la kuwala.Liwiro limeneli ndi lothamanga kwambiri kuŵirikiza nthaŵi miliyoni imodzi kuposa liŵiro la mafunde a mawu.Liwiro la kuwala likhoza kulembedwa mu equation ya "C".Tidzayesa kutalika kwa nthawi mu mita, masekondi, ndi ma kilogalamu.Ma equations amtsogolo tiyenera kukumbukira.
Tisanafotokoze ma frequency, tiyenera kufotokozera kuti mafunde a electromagnetic ndi chiyani.Iyi ndi malo amagetsi omwe amafalikira kutali ndi malo ena (mlongoti, dzuwa, nsanja ya wailesi, chirichonse).Kuyenda mu gawo lamagetsi kuli ndi mphamvu ya maginito yogwirizana nayo.Minda iwiriyi imapanga mafunde a electromagnetic.
Chilengedwe chimalola mafundewa kukhala ndi mawonekedwe aliwonse.Koma mawonekedwe ofunikira kwambiri ndi sine wave.Izi zakonzedwa mu Chithunzi 1. Mafunde a electromagnetic amasiyana ndi malo ndi nthawi.Kusintha kwa malo kukuwonetsedwa mu Chithunzi 1. Kusintha kwa nthawi kukuwonetsedwa mu Chithunzi 2.
chithunzi 1. Sine wave yokonzedwa ngati ntchito ya udindo.
chithunzi 2. Konzani mafunde a sine monga ntchito ya nthawi.
Mafunde ndi periodic.Mafunde amabwereza kamodzi sekondi iliyonse mu mawonekedwe a "T".Zokonzedwa ngati ntchito mumlengalenga, kuchuluka kwa mita pambuyo pa kubwereza kwa mafunde kumaperekedwa apa:
Izi zimatchedwa wavelength.Mafupipafupi (olembedwa "F") ndi chiwerengero cha maulendo athunthu omwe mafunde amamaliza mu sekondi imodzi (kuzungulira kwa zaka mazana awiri kumawoneka ngati ntchito ya nthawi yolembedwa 200 Hz kapena 200 "hertz" pamphindikati).Mwamasamu, iyi ndi njira yolembedwa pansipa.
Kuthamanga kwa munthu kumadalira kukula kwake (wavelength) kuchulukitsidwa ndi kuchuluka kwa masitepe (mafupipafupi).Kuthamanga kwa mafunde kumafanana ndi liwiro.Kuthamanga kwa mafunde ("F") kuchulukitsa ndi kukula kwa masitepe omwe mafundewa amatenga nthawi iliyonse ( ) amapereka liwiro.Njira yotsatirayi iyenera kukumbukiridwa:
Kunena mwachidule, ma frequency ndi muyeso wa liwiro la mafunde a oscillate.Mafunde onse a electromagnetic amayenda pa liwiro lomwelo.Chifukwa chake, ngati mafunde a electromagnetic akuyenda mwachangu kuposa mafunde, mafunde othamanga ayeneranso kukhala ndi utali waufupi.Kutalika kwa mafunde kumatanthauza kutsika kwafupipafupi.
Nthawi yotumiza: Dec-01-2023
