3 EMF Yoyambitsidwa ndi Magetsi - Mavuto ndi Mayankho
1. Chokokeracho chasinthidwa ndi chokokera china chomwe chili ndi malupu owirikiza kawiri kuposa malupu oyamba ndipo liwiro la kusintha kwa maginito limakhala losasintha. Dziwani chiŵerengero cha emf yoyambira ndi yomaliza yomwe yayambitsidwa.
Zodziwika:
Malupu oyamba (N) = 1
Mapeto ozungulira (N) = 2
Mlingo wa kusintha kwa maginito oyamba (ΔØ B / Δt) = mlingo wa kusintha kwa maginito omaliza (ΔØ B / Δt)
Chifunidwa: Chiŵerengero cha emf yoyambira ndi yomaliza yomwe imayambitsa
Yankho:
Kuyerekeza kwa lamulo la Faraday la kulowetsa:
E = -N (ΔØ B / Δt)
E = EMF yoyambitsidwa, N = chiwerengero cha malupu, ΔØ B / Δt = kuchuluka kwa kusintha kwa maginito
Chiŵerengero cha emf yoyambira ndi yomaliza yomwe yayambitsidwa:
Chiyambi cha E: Chomaliza cha E
-N (ΔØ B / Δt): -N (ΔØ B / Δt)
1: 2
2. Mu mkhalidwe woyambirira (1), mphamvu ya maginito imasinthidwa ndi 5 Wb mu masekondi awiri pa coil yokhala ndi malupu 20. Mu mkhalidwe womaliza (2), mphamvu yomweyi inasintha mu masekondi 8. Dziwani chiŵerengero cha emf yoyamba yomwe yayambitsidwa ndi emf yomaliza yomwe yayambitsidwa.
Zodziwika:
Mlingo wa kusintha kwa maginito oyamba (ΔØ B / Δt) = 5/2
Mlingo wa kusintha kwa maginito omaliza (ΔØ B / Δt) = 5/8
Chiwerengero cha malupu (N) = 20
Chifunidwa: Chiŵerengero cha emf yoyamba yoyambitsidwa ndi emf yomaliza yoyambitsidwa
Yankho:
Chiyambi cha E: Chomaliza cha E
-N (ΔØ B / Δt): -N (ΔØ B / Δt)
20 (5/2): 20 (5/8)
5/2: 5/8
1/1: 1/4
4: 1
3. Kuthamanga kwa maginito kwa coil yoyamba kumakhala ndi ma loops 200 osinthika ndi 0.06 Wb mu masekondi 0.4. Kuthamanga kwa maginito kwa coil yomaliza kumakhala ndi 0.08 Wb mu masekondi 0.2. Ngati ma loops angapo a coil yomaliza alowetsedwa m'malo ndi theka la nambala ya ma loops a coil yoyamba, dziwani chiŵerengero cha emf yomwe yayambitsidwa ya loop yoyamba ndi loop yomaliza.
Zodziwika:
Mlingo wa kusintha kwa maginito oyamba (ΔØ B / Δt) = 0.06 / 0.4
Chiwerengero cha malupu oyamba (N) = 200
Mlingo wa kusintha kwa maginito omaliza (ΔØ B / Δt) = 0.08 / 0.2
Chiwerengero cha malupu omaliza (N) = 100
Chifuniro: Chiŵerengero cha emf yoyamba yoyambitsidwa ndi emf yomaliza yoyambitsidwa
Yankho:
Chiyambi cha E: Chomaliza cha E
-N (ΔØ B / Δt): -N (ΔØ B / Δt)
200 (0.06/0.4): 100 (0.08/0.2)
2 (0.15): 1 (0.4)
0.3: 0.4
3: 4
