Zitsanzo 4 za mafunso okhudza coil ya solenoid
1. Zinthu zomwe zimakhudza kukula kwa mphamvu ya maginito amagetsi mu coil ndi...
A. kuchepetsa magetsi ndikuwonjezera kuchuluka kwa mizere
B. onjezerani kuchuluka kwa ma turn ndikuyika chitsulo chofewa mkati mwake
C. onjezerani mphamvu yamagetsi ndikukulitsa coil
D. kuchepetsa mphamvu yamagetsi ndikuchepetsa kuchuluka kwa ma turn
Zokambirana
Chozungulira cha waya chopangidwa ndi zingwe zambiri chimatchedwa solenoid. Mphamvu yonse ya maginito yopangidwa ndi solenoid ndi chiwerengero cha mphamvu ya maginito yopangidwa ndi mphamvu yamagetsi yomwe imadutsa mu chizunguliro chilichonse.
Fomula ya mphamvu ya maginito yopangidwa ndi solenoid ndi iyi:
Kufotokozera: B = mphamvu ya maginito, I = mphamvu yamagetsi, N = chiwerengero cha malupu/ma coil, l = kutalika kwa malupu, n = chiwerengero cha malupu pa unit level
Kutengera ndi njira iyi, tinganene kuti kukula kwa mphamvu ya maginito kumadalira mphamvu ya mphamvu yamagetsi (I) ndi kuchuluka kwa malupu/ma coil pa unit length (n).
Yankho lolondola ndi C.
2. Chithunzi chotsatirachi ndi cha solenoid ndi mphamvu yake ya maginito. Cholondola ndi...
Zokambirana
Solenoid ndi waya wautali womwe uli ndi malupu ambiri, monga momwe chithunzi chili pamwambapa chikusonyezera.
Chithunzi cholondola cha solenoid ndi mphamvu yake ya maginito chikhoza kudziwika pogwiritsa ntchito lamulo la dzanja lamanja. Tambasulani dzanja lanu lamanja, kenako wongolerani chala chanu chachikulu ndikupinda zala zina zinayi kuti njira yozungulira zala zinayi igwirizane ndi njira ya mphamvu yamagetsi (I) mu coil. Kumbukirani kuti mphamvu yamagetsi imayenda kuchokera ku mphamvu yayikulu kupita ku mphamvu yochepa.
Kumene chala chachikulu chikuyang'ana kumpoto kwa mphamvu ya maginito. Mizere ya mphamvu ya maginito imawonetsedwa ngati ikutuluka kuchokera kumpoto ndikulowa kum'mwera.
Yankho lolondola ndi A.
3. Samalani ndi mawuwo!
1. gawo la waya
2. mtundu wa waya
3. mphamvu yamagetsi
4. chiwerengero cha maulendo
Mphamvu ya mphamvu ya maginito imatsimikiziridwa ndi ....
A. 1 ndi 2
B. 2 ndi 3
C. 2 ndi 4
D. 3 ndi 4
Zokambirana
Solenoid ndi waya wautali womwe uli ndi malupu ambiri.
Fomula ya mphamvu ya maginito yopangidwa ndi solenoid ndi iyi:
Kufotokozera: B = mphamvu ya maginito, n = N / l = chiwerengero cha malupu pa unit length, I = mphamvu yamagetsi
Kutengera ndi njira iyi, tinganene kuti mphamvu ya mphamvu ya maginito imatsimikiziridwa ndi mphamvu ya mphamvu yamagetsi (I), chiwerengero cha ma turns (N) ndi kutalika kwa waya.
Yankho lolondola ndi D.
4. Izi ndi zinthu zomwe zimakhudza maginito amagetsi, kupatulapo...
A. chiwerengero cha maulendo
B. mphamvu ya madzi oyenda
C. chitsulo chachikulu
D. njira yozungulira
Zokambirana
Fomula ya mphamvu ya maginito yopangidwa ndi solenoid ndi iyi:
Kufotokozera: B = mphamvu ya maginito, I = mphamvu yamagetsi, N = chiwerengero cha ma turn, l = kutalika kwa turn, n = chiwerengero cha ma turn pa unit level
Kutengera ndi njira iyi, zatsimikiziridwa kuti mphamvu ya mphamvu ya maginito imadalira mphamvu ya mphamvu yamagetsi (I) ndi kuchuluka kwa ma turns pa unit length (n).
Kulunjika kwa mphamvu ya maginito kumatsimikiziridwa ndi komwe coil imalowera. Kulunjika kwa coil kumatsimikiziridwa ndi malo a mphamvu yapamwamba ndi yotsika, komwe mphamvu yayikulu imayimiridwa ndi mzere wautali ndipo mphamvu yochepa imayimiridwa ndi mzere waufupi. Mphamvu yamagetsi imayenda kuchokera ku mphamvu yayikulu kupita ku mphamvu yochepa. Chifukwa chake, ngati malo a mphamvu yayikulu ndi yotsika ndi osiyana, malo a kumpoto ndi kumwera kwa mphamvu ya maginito yomwe imachokera adzakhalanso osiyana.
Choncho chomwe sichili chinthu chomwe chimakhudza mphamvu ya maginito ndi chitsulo. Chitsulo chachitsulo ndi chinthu chokhacho chomwe chidzapangidwe kukhala maginito.
Yankho lolondola ndi C.
