Matransformer nesimba remagetsi - matambudziko nemhinduro
1. Koira yekutanga yetransformer yakakodzera yakabatana nemagetsi anowanikwa uye koira yechipiri yakabatana nerambi sezvakaratidzwa pazasi.
A. Rambi rinodzima kana zvishwe zvekutanga zvikaderedzwa
B. Mwenje uchapenya kana zvishwe zvechipiri zvikawedzerwa
C. Rambi richadzikira kana voltage yekutanga ikawedzerwa
D. Rambi richareruka kana zvishwe zvekutanga zvikaderedzwa
E. Chiedza chichava chakafanana kana zvishwe zvikachinjwa
mhinduro
Kuchinja kwehuwandu hwema coil loops kunokanganisa chete rudzi rwe transformer . Kana ma primary loops akaderedzwa zvekuti ma secondary loops akawandisa transformer iyi inova step-up transformer inokwidza voltage. Saizvozvowo, kana ma coil loops akabatana kuitira kuti ma secondary coil loops adzikire transformer iyi inova step-down transformer inoderedza voltage.
Rangarira kuti kana simba remagetsi rikawedzera, simba remagetsi rinoderera zvekuti simba remagetsi rinoramba riripo (P = VI). Simba remagetsi kuchinja kwesimba remagetsi panguva yakatarwa. Kana simba rekupinda rakaenzana nesimba rinobuda, huwandu hwesimba rinoshandiswa hwakafananawo.
Chiedza kana kuti chiedza chisina kujeka chinobatanidzwa nesimba remagetsi rakawanda kana kuti kanenge kari remagetsi rinoshandurwa kuita simba rechiedza. Kana simba remagetsi rakawanda rikachinjwa kuita simba rechiedza, ipapo chiedza chakajeka, zvikasadaro kana simba remagetsi diki rikachinjwa kuita simba rechiedza, ipapo chiedza chinodzikira. Simba remagetsi harichinji, simba remagetsi harichinji saka chiedza chakafanana.
Mhinduro chaiyo ndiE.
2. Mufananidzo uri pazasi unotsanangura transformer yakakodzera. Coil yekutanga yakabatana ne voltage source uye coil yechipiri yakabatana ne rambi (L). Zvadaro mamiriro erambi achava…
A. Kupenya kwakajairika kana zvishwe zvekutanga zvichichinjwa
B. Kudzikira kana voltage yekutanga ikawedzera
C. Kupenya kana zvishwe zvechipiri zvawedzerwa
D. Kudzima kana zvishwe zvechipiri zvawedzerwa
E. Kupenya kana marobho ekutanga aderedzwa
Solution:
Simba rekuisa = P = VI = (200 Volt)(2 Ampere) = 400 Watt = Simba rekuisa
Transformer inongoderedza voltage chete asi haideredzi simba remagetsi. Simba remagetsi rinogara riripo saka kana voltage yemagetsi yadzikira, magetsi emagetsi anowedzera (P = VI). Simba remagetsi rinopinda rakafanana nesimba remagetsi rinobuda saka simba remagetsi rinoshandiswa panguva yakati rebei rakafananawo. Saka chiedza chinowanzova chakajairika kana kuti chisina kuchinja.
Mhinduro chaiyo ndeinoti A.
3.
Chirauro chechipiri chakabatana nerambi rebhabhu, ukuwo chirauro chekutanga chakabatana nemagetsi. Bhabhu rinobatidza...
A. kupenya kana huwandu hwezvishwe zvekutanga hwakawedzerwa
B. kupenya kana huwandu hwezvishwe zvechipiri hwakawedzerwa
C. kupenya kana nhamba yezvishwe zvechipiri yakaenzana neyokutanga
D. kudzima kana voltage yekutanga yawedzerwa
E. yakadzikira kana voltage yekutanga uye huwandu hwezvipenga zvechipiri zvawedzerwa
mhinduro
Hapana mhinduro chaiyo
