Mutemo waOhm - matambudziko nemhinduro

Mutemo waOhm - matambudziko nemhinduro

1.

Zvichibva patafura iri pazasi, hukama huripo pakati pevoltage (V), electric current (I) uye resistance (R) hwa…..

Solution:

Mutemo waOhm:

V = IR kana R = V / I

R ₁ = V / I = 1.50 / 0.08 = 18.75 Ohms

R ₂ = V / I = 2.80 / 1.50 = 2.87 Ohms

R ₃ = V / I = 3.99 / 2.10 = 1.9 Ohms

Zvichibva patafura, hukama huripo pakati paV, I naR hunoratidza kukosha kwaR zvichienderana neV naI. Izvi zvinoreva kuti kana V naI vakakura, R diki.

Kukosha kweV/I hakusi kwekuchinja-chinja saka hakuratidzi mutemo weOhm . Zvinoenderana nemutemo weOhm, kukosha kweV/I kunofanira kunge kwakafanana.

2. Ndeipi girafu inoratidza hukama huripo pakati pemusiyano unokwanisa kuitika nemagetsi?

Solution:

A

3. Zvichibva padata riri mutafura inotevera yemhedzisiro yekuyedza, zvinogona kugumiswa kuti magetsi emagetsi ...

Solution:

Zvichibva padata riri patafura, magetsi emagetsi akakura, magetsi emagetsi akakurawo. Saka zvakagumiswa kuti magetsi emagetsi anoenderana nemagetsi.

4. Mudziyo une resistance ye150 Ohm uye magetsi emagetsi e2A anomhanya. Musiyano unogona kuvapo ndewekuti…

Zvinozivikanwa:

Kuramba (R) = 150 Ohm

Mwenje wemagetsi (I) = 2 Ampere

Zvinodiwa: Voltage (V)

Solution:

V = IR

V = magetsi emagetsi, I = magetsi emagetsi, R = kudzivirira magetsi

Voltage:

V = IR = (2 Ampere)(150 Ohm) = 300 Volts

5. Mwenje wemagetsi uri muwaya inopikisa i4 A. Kana mativi ese ari maviri akapihwa mukana we12 Volts. Chii chinonzi resistance yemagetsi?

Zvinozivikanwa:

Mwenje wemagetsi (I) = 4 Ampere

Voltage (V) = 12 Volt

Zvinodiwa: Kudzivirira magetsi (R)

Solution:

Resistance :

R = V / I = 12 Volts / 4 Amps = 3 Ohms

1. Ndeupi mutemo waOm?
   • mhinduroMutemo waOhm unoti magetsi ($I$) kuyerera nepakati pemuchina wekufambisa pakati penzvimbo mbiri kunoenderana zvakananga nemagetsi ($V$) pakati penzvimbo mbiri, uye zvinoenderana nekuramba ($R$) yemutungamiriri. Pamasvomhu, inomiririrwa se $V=IR$.
2. Kana resistor ichitevedzera Mutemo weOhm, tinofanira kuona hukama hwakaita sei pakati pevoltage necurrent?
   • mhinduro: Tinofanira kuona hukama hwakatsetseka. Kana ukadhirowa voltage uchipesana nemagetsi, kutsveyama kwemutsetse kunomiririra resistance, uye mutsetse uchapfuura nepakabva.
3. Kuwedzera resistance mucircuit kunokanganisa sei current, tichifunga kuti voltage inoramba iripo?
   • mhinduro: Kana kuramba kuchiwedzera nepo voltage ichiramba yakadaro, simba remagetsi mudunhu rinodzikira, zvichienderana nemutemo weOhm.
4. Sei Mutemo waOhm usingashande pasi pemamwe mamiriro ezvinhu kana kune zvimwe zvinhu?
   • mhinduro: Mutemo weOhm unoshanda kune zvinhu zve "ohmic" apo kuramba kunoramba kuripo kana voltage ichichinja. Zvisinei, kune zvimwe zvinhu nezvishandiso (senge madiode, kana pama frequency akanyanya kana tembiricha), kuramba kunogona kuchinja ne voltage kana current, zvichiita kuti hukama husave hwakatsetseka.
5. Chii chinonzi unit of resistance, uye inotsanangurwa sei maererano neOhm's Law?
   • mhinduro: Chiyero chekudzivirira iohm (Ω). Ohm imwe chete inotsanangurwa sekudzivirira kunobvumira ampere imwe yemagetsi kuti ifambe kana volt imwe chete yaiswa pamusoro payo.
6. Kana ma resistors maviri akatevedzana ese achinyatsoteerera Mutemo waOhm, musanganiswa wacho uchateererawo Mutemo waOhm here?
   • mhinduro: Ehe, musanganiswa uchatevedzerawo Mutemo waOhm. Kuramba kwese mumutsara ndiko kuwanda kwekuramba kwega kwega, uye simba remagetsi kuburikidza nese richave rakafanana. Voltage musanganiswa ichave huwandu hwemavoltages mu resistor yega yega.
7. Kuramba kwewaya kunoenderana sei nehurefu hwayo nenzvimbo yayo yekubatanidza waya?
   • mhinduro: Kudzivirira kwewaya kunoenderana nehurefu hwayo uye kunoenderana nenzvimbo yayo yakachinjika. Saka, waya yakareba ichava nekudzivisa kukuru, uye waya yakakora ichava nekudzivisa kushoma.
8. Kana voltage iri pamusoro pe resistor yakapetwa kaviri, magetsi anochinja sei, tichifunga kuti resistor inoramba iri ohmic?
   • mhinduro: Kana resistor ikaramba iri ohmic (uye nokudaro ichitevera Mutemo weOhm), kuwedzera voltage kaviri kuchawedzerawo kaviri current.
9. Chinhu chisina kuramba zvachose chinogona kuitika here?
   • mhinduro: Muzviitiko zvezuva nezuva, chinhu chisina kuramba zvachose, kana kuti "superconductor", hachigone kuonekwa zviri nyore. Zvisinei, zvimwe zvinhu pakupisa kwakaderera zvakanyanya zvinogona kuva superconductors uye hazvigone kuramba zvachose kuyerera kwemagetsi.
10. Chii chinonzi kuparadzirwa kwesimba kwe resistor maererano neOhm's Law?

• mhinduro: Simba ($P$) inonyungudutswa ne resistor inopiwa ne P=I²R or P=V²/R, yakabva mukusanganiswa kweMutemo waOhm nefomura yesimba $P=IV$.