Magulu a Gurumuda
Lamulo loyamba la Kirchhoff - mavuto ndi mayankho 1. Kutengera chithunzi monga momwe chasonyezedwera pansipa, ngati I1 = 5A, I2 = 3 A, I3 = 6 A, ndiye kuti I4 = ……… Yankho: Lamulo loyamba la Kirchhoff limati kuchuluka kwa mafunde onse olowa pamalo olumikizirana ayenera kukhala ofanana ndi kuchuluka kwa mafunde onse ochoka pamalo olumikizirana. … Werengani zambiri
Mafunde opingasa ndi aatali - mavuto ndi mayankho 1. Mafunde akuyenda pansi pa waya wautali wa mamita atatu kwa masekondi 0.3. Kodi nthawi ya mafunde ndi yotani? Yodziwika: Nthawi yopuma (t) = masekondi 0.3 Yofunidwa: Nthawi (T) Yankho: Kutalika kwa 1 kwa mafunde = 1 crests + 1 throughs Nthawi = 2 x 0.1 … Werengani zambiri
Mphamvu yolimba - mavuto ndi mayankho 1. Chipilala cha matabwa kutalika = 2.5 m, m'lifupi = 0.5 m ndi kutalika = 0.4 m. Kuchuluka kwa madzi ndi 1000 kg/m3. Ngati chipilalacho chaikidwa m'madzi, kodi mphamvu yolimba ndi yotani… Kuthamanga chifukwa cha mphamvu yokoka ndi 10 N/kg. Yodziwika: Kuchuluka... Werengani zambiri
25 Mphamvu yamagetsi - mavuto ndi mayankho 1. A 220 V - 5 Nyali yamagetsi imagwiritsidwa ntchito kwa mphindi 30. Imafuna mphamvu zingati? Yankho: Voltage (V) = 220 Volts Mphamvu yamagetsi (I) = 5 Ampere Nthawi (t) = mphindi 30 = 30 x 60 masekondi = 1800 masekondi Mphamvu yamagetsi … Werengani zambiri
28 Mphamvu yamagetsi - mavuto ndi mayankho 1. Werengani mphamvu yamagetsi ya nyali ya 10 Watt yopangidwira ma Volts 12. Yodziwika: Mphamvu (P) = 10 Watt Voltage (V) = 220 Volt Yofunidwa: Mphamvu yamagetsi Yankho: Mphamvu ya nyali = 10 Watt = 10 Joule/sekondi Equation ili pansipa ikuwonetsa ubale pakati pa … Werengani zambiri
25 Injini ya Carnot (kugwiritsa ntchito lamulo lachiwiri la thermodynamics) - mavuto ndi mayankho 1. Injini imagwira ntchito pakati pa 1200 Kelvin ndi 300 Kelvin. Kodi mphamvu ya injini iyi ndi yotani? Yodziwika: Kutentha kwambiri (TH) = 1200 K Kutentha kochepa (TL) = 300 K Kufunika: Kugwira ntchito bwino (e) Yankho: 2. Injini imagwira ntchito pakati pa … Werengani zambiri
30 Injini yotenthetsera (kugwiritsa ntchito lamulo lachiwiri la thermodynamics) - mavuto ndi mayankho 1. Kulowetsa kutentha QH = 3000 Joules ndi kutulutsa kutentha QL = 1000 Joules. Kodi mphamvu ya injini yotenthetsera ndi yotani? Yodziwika: Kulowetsa kutentha (QH) = 3000 Joules Kutulutsa kutentha (QL) = 1000 Joules Ntchito yochitidwa ndi injini … Werengani zambiri
30 Njira za Isobaric thermodynamics - mavuto ndi mayankho 1. Chithunzi cha PV pansipa chikuwonetsa mpweya wabwino womwe umachitika mu njira ya isobaric. Werengani ntchito yomwe yachitika ndi mpweya mu ndondomekoyi AB. Yodziwika : Kupanikizika (P) = 5 x 105 N/m2 Voliyumu yoyamba (V1) = 2 m3 Voliyumu yomaliza (V2) = 6 m3 Yofunidwa : … Werengani zambiri
30 Njira za Isochoric thermodynamics - mavuto ndi mayankho 1. Chithunzi cha PV pansipa chikuwonetsa mpweya wabwino womwe umachitika mu njira ya isochoric. Werengani ntchito yomwe yachitika ndi mpweya mu njira ya AB. Yankho: Njira ya AB ndi njira ya isochoric (voliyumu yokhazikika). Voliyumuyo ndi yokhazikika kotero kuti palibe ntchito yomwe imachitika ndi mpweya. … Werengani zambiri
30 Njira zoyezera kutentha kwa mpweya - mavuto ndi mayankho 1. Chithunzi cha PV pansipa chikuwonetsa mpweya wabwino womwe umadutsa mu njira yoyezera kutentha. Werengani ntchito yomwe yachitika ndi mpweya mu ndondomekoyi AB. Yankho Ntchito yochitidwa ndi mpweya ndi yofanana ndi dera lomwe lili pansi pa PV curve AB = dera la makona atatu + dera la rectangle W ... Werengani zambiri