Mienzaniso 8 yeMatambudziko Emagetsi Emagetsi
1. Chaja yemagetsi ye1 Coulomb inopfuura nepawaya yeconductor kwesekondi imwe. Hukuru hwemagetsi emagetsi nde…..
Kukurukurirana
Zvinozivikanwa kuti:
Chaji (Q) = 1 Coulomb
Nguva yepakati (t) = masekondi maviri
Akabvunzwa: Magetsi emagetsi
Mhinduro:
I = Q / t = 1 / 1 = 1 Coulomb/sekondi = 1 Ampere
2. Mwenje we2 Amperes unoyerera nepawaya kwemasekondi masere. Sarudza hukuru hwechaji inopfuura nepapoindi uye huwandu hwemaerekitironi ari muchaji iyoyo!
Kukurukurirana
Zvinozivikanwa kuti:
Mwenje wemagetsi (I) = 1 Amperes
Nguva yepakati (t) = masekondi maviri
Mubvunzo: kuchaja (Q) uye huwandu hwemaerekitironi (e)
Mhinduro:
Fomura yemagetsi:
Ini = Q/t
Tsananguro yefomura: I = magetsi emagetsi, Q = kuchaja kwemagetsi, t = nguva yekushanda
Kuchaja kwemagetsi:
Q = I t = (2 Ampere)(masekonzi masere) = 16 Coulombs.
Chaji ye erekitironi imwe chete i1,6 x 10 -19 Coulombs saka chaji ye16 Coulombs ine maerekitironi akawanda se16 C / 1,6 x 10 -19 Coulombs = 10 x 10 19 maerekitironi.
3. 10 mA = …… Ampere?
Kukurukurirana
Ampere imwe = 1000 milliAmpere
1 milliAmpere = 1/1000 Ampere
10 milliAmpere = 10/1000 Ampere = 1/100 Ampere = 1/10 2 Ampere = 10 -2 Ampere = 0,01 Ampere
4. Tarisa mufananidzo!
- Sarudza divi remagetsi!
- Sarudza divi rekufamba kwemaerekitironi!
Kukurukurirana
Mhepo yemagetsi inoshanduka kubva pakukwanisa kukuru kuenda pakukwanisa kushoma. Zvichibva padhayagiramu, divi remagetsi rinoenda rinopesana newachi.
Kufamba kwemaerekitironi kunobva padanda rekuti negative kuenda padanda rekuti positive. Zvichibva pamufananidzo, zvinotenderera wachi.
5. Mwenje wemagetsi we10 A unoyerera nemumuchina wemagetsi kwemaminitsi maviri. Huwandu hwechaji yemagetsi inoyerera nemumuchina wemagetsi...
A. 5 Coulombs
B. 12 Coulombs
C. 20 Coulombs
D. 1200 Coulombs
Kukurukurirana
Zvinozivikanwa kuti:
Mwenje wemagetsi (I) = 10 Amperes
Nguva (t) = maminetsi maviri = masekondi maviri x makumi matanhatu = masekondi zana nemakumi maviri
Mubvunzo: Kombiya inofambisa magetsi akawanda sei?
Mhinduro:
Fomura yesimba remagetsi:
Ini = q/t
Tsananguro: I = magetsi emagetsi, q = kuchaja kwemagetsi, t = nguva yekupedza
Kuchaja kwemagetsi:
q = I t = (10)(120) = 1200 Coulombs
Mhinduro chaiyo ndiD.
6. Kana maCoulombs makumi matanhatu emagetsi akayerera nepawaya yekufambisa magetsi mumaminitsi mashanu, zvinoreva kuti magetsi...
A. 0,2 Ampere
B. 0,5 Ampere
C. 3 Amperes
D. 6 Amperes
Kukurukurirana
Zvinozivikanwa kuti:
Nguva (t) = maminetsi mashanu = masekondi mashanu x makumi matanhatu = masekondi mazana matatu
Chaja yemagetsi (Q) = 60 Coulombs
Mubvunzo: Simba remagetsi (I)
Mhinduro:
Simba remagetsi:
Ini = Q/t
Ini = 60 / 300
I = 0,2 Coulomb/sekondi
I = 0,2 Amperes
Coulomb/second inonziwo Ampere.
Mhinduro chaiyo ndiA.
7. Chikamu cheSI chemagetsi chemagetsi...
A. ampere
B. volt
C. coulomb
D. ohm
Kukurukurirana
Ampere ndiyo inonzi International System of Units iyo inotsanangura huwandu hwemagetsi aripo.
Mhinduro chaiyo ndiA.
8. Magetsi anogadzirwa nedhinamo anogona kuratidzwa mugirafu...
Kukurukurirana
Tsananguro yegirafu: I = magetsi emagetsi, t = nguva yepakati
Dynamo inogadzira magetsi akananga (DC), ukuwo jenareta remagetsi richigadzira magetsi achinjana (AC). Girafu yemagetsi akananga inoratidzwa mumhinduro D, ukuwo girafu yemagetsi achinjana inoratidzwa mumhinduro B.
Mhinduro chaiyo ndiD.
