Chitsanzo cha mafunso okhudza magetsi

1. Mfundo A ili pamtunda wa 5 cm kuchokera pa mphamvu ya +10 micro Coulombs. Kukula ndi njira ya mphamvu yamagetsi pa mfundo A ndi… (k = 9 x 10⁹ Nm²C^-2, 1 yaying'ono Coulomb = 10^-6 C)
Zokambirana
Ndizodziwika kuti :

Anafunsa Kukula ndi komwe magetsi akuyendera pamalo A
Yankhani :

Kuwongolera kwa munda wamagetsi pamalo A :
Mphamvu yamagetsi ndi yabwino, choncho njira ya magetsi ili kutali ndi mphamvu yamagetsi ndipo ili kutali ndi mfundo A.

2. Mtunda pakati pa mfundo P ndi mphamvu ya -20 micro Coulombs ndi 10 cm. Dziwani mphamvu ya mphamvu ya mphamvu yamagetsi ndi komwe magetsi akupita pa mfundo P.
Zokambirana
Ndizodziwika kuti :

Anafunsa Kukula ndi komwe magetsi akuyendera pamalo P
Yankhani :

Kuwongolera kwa munda wamagetsi pamalo A :
Mphamvu yamagetsi ndi yoipa, motero njira yamagetsi ikupita ku mphamvu yamagetsi ndipo ili kutali ndi mfundo P.

3. Ma charge awiri amagetsi amalekanitsidwa ndi mtunda wa masentimita 40. Mphamvu ya magetsi ndi komwe magetsi amalowera pamalo omwe ali pakati pa ma charge awiriwa ndi…

Zokambirana
Tiyerekeze kuti mfundo yomwe ili pakati pa ma charge awiriwa ndi mfundo P.
Ndizodziwika kuti :

Anafunsa : kukula ndi komwe magetsi ali pamalo omwe ali pakati pa magetsi awiri (point P)
Yankhani :
Mphamvu yamagetsi yopangidwa ndi mphamvu A pamalo P :

Chaji A ndi yoipa kotero njira ya magetsi ikulowera ku chaji A (kumanzere).
Mphamvu yamagetsi yopangidwa ndi chaji B pamalo P :

Chaji B ndi yabwino kotero kuti komwe magetsi akupita kuli kutali ndi chaji B (kumanzere).
Mphamvu yamagetsi yomwe imabwera pambuyo pake pa mfundo A :
E_A ndi E_B mbali imodzi motero amawonjezedwa pamodzi.
E = E_A +E_B
E = (4,5 x 10⁵) + (9 x 10⁵)
E = 13,5 x 10⁵ N / C
Njira ya magetsi ikupita ku chaji A ndipo kutali ndi chaji B (kumanzere).

4. Mphamvu yamagetsi ndi zero pamalo amodzi pa mtunda wa…

Zokambirana
Chaji A ndi yabwino ndipo chaji B ndi yabwino, kotero mphamvu yamagetsi ndi zero, yomwe ili pakati pa machaji awiriwa. Tiyerekeze kuti mfundo yomwe mphamvu yamagetsi ndi zero ndi mfundo P.
Ndizodziwika kuti :

Anafunsa : mphamvu yamagetsi ya zero ili pamalo omwe ali patali ndi…
Yankhani :
Mphamvu yamagetsi yopangidwa ndi mphamvu A pamalo P :

Chaji A ndi yabwino kotero kuti njira ya magetsi yomwe yapangidwa ndi chaji A pamalo P ili kutali ndi chaji A (kumanja).
Mphamvu yamagetsi yopangidwa ndi chaji B pamalo P :

Chaji B ndi yabwino kotero kuti njira ya magetsi yopangidwa ndi chaji B pamalo P ili kutali ndi chaji B (kumanzere).
Mphamvu yamagetsi yomwe imabwera pambuyo pake P = 0 :
E_A ndi E_B njira yosiyana.
E_A - E_B = 0
E_A =E_B

Gwiritsani ntchito fomula ya ABC kuti mudziwe mtengo wa a.

Mphamvu yamagetsi yopanda magetsi ili pamtunda wa 8 cm kuchokera pa chaji A kapena 12 cm kuchokera pa chaji B.

5. Mtunda pakati pa machaji awiri A ndi B ndi mamita atatu. Point O ili pakati pa machaji awiri ndipo ili mamita awiri kuchokera pa chaji B. q_A = –300 μC ndi q_B = 600 μC. k = 9 × 10⁹ N m² C^-2Mphamvu ya magetsi pamalo O imakhudzidwa ndi mphamvu ya q_A ndi q_B ndi…
A. 9 × 10⁵ N / C
B. 18 × 10⁵ N / C
C. 52 × 10⁵ N / C
D. 60 × 10⁵ N / C
E. 81 × 10⁵ N / C

Kukambirana:
Ndizodziwika kuti :
q_A = –300 μC, q_B = 600 μC, k = k = 9 × 10⁹ N m² C^-2
Anafunsa :
Kodi mphamvu yamagetsi (E) pa mfundo O ndi yotani?
Yankhani :
Mphamvu ya munda yomwe imabwera chifukwa cha izi:
E = E_A +E_B
E = (2700 x 10³ N/C) + (5400 x 10³ Palibe
E = 8100 x 10³ N / C
E = 81 x 10⁵ N / C
Yankho lolondola ndi E.

6. Machaji awiri pa q₁ = -20 μC ndi q₂ = -40 μC. Ngati pa mfundo P yomwe ili 20 cm kuchokera ku q₂ Mphamvu yamagetsi yomwe imabwera chifukwa cha izi ndi zero, ndiye kuti mtengo wake x ndi…
A. 11 cm
B. 12 cm
C. 13 cm
D. 14 cm
E. 15 cm

Kukambirana:
Ndizodziwika kuti :
q₁ = -20 μC, q₂ = -40 μC, r₂ = 0,2 m, r₁ =x
Anafunsa :
Mtunda wa mfundo P kuchokera ku q₁ (x) ?
Yankhani :
Mphamvu yamagetsi yomwe imabwera chifukwa cha izi ndi zero pa mfundo P:
Yankho lolondola ndi D.

7. TBakha A ali pakati pa ma charge awiri ofanana kukula koma mitundu yosiyana omwe amalekanitsidwa ndi mtunda. Kukula kwa mphamvu yamagetsi pamalo A panthawiyo ndi 36 NC.^-1Ngati mfundo A yasunthidwa ¼ pafupi ndi imodzi mwa ma charges, ndiye kuti kukula kwa mphamvu yamagetsi ya mfundo A ikasunthidwa ndi ....

A. 100 NC^-1

B. 96 NC^-1

C. 80 NC^-1

D. 60 NC^-1

E. 16 NC^-1

Zokambirana

Ndizodziwika kuti :

Cholipiritsa 1 (q)₁) = +Q

Cholipiritsa 2 (q)₂) = -Q

Mtunda pakati pa cholipiritsa 1 ndi mfundo A (r)_1A) = ½ a

Mtunda pakati pa cholipiritsa 2 ndi mfundo A (r)_2A) = ½ a

Mphamvu yamagetsi pa mfundo A (E)_A) = 36 NC^-1

Anafunsa Ngati mfundo A yasunthidwa ¼ pafupi ndi imodzi mwa ma charges, ndiye kuti mphamvu yamagetsi ya mfundo A ndi…

Yankhani :

Gawo 1.

Kuti muwerenge mphamvu ya magetsi pamalo A, ganizirani kuti pali mayeso abwino pamalowo. Kupezeka kwa mayeso abwino kumakhudza komwe magetsi akupita.

Mphamvu yamagetsi yopangidwa ndi mphamvu + Q pa mfundo A :

Choyimitsa choyesera ndi chabwino ndipo choyimitsa 1 ndi chabwino kotero kuti njira ya magetsi ikupita ku choyimitsa 2.

Munda wamagetsi wopangidwa ndi mphamvu ya -Q pa mfundo A :

Choyimitsa choyesera ndi chabwino ndipo choyimitsa chachiwiri ndi choipa kotero njira ya magetsi ikupita ku choyimitsa chachiwiri.

Mphamvu yamagetsi yomwe imabwera pambuyo pake pa mfundo A :

Gawo lachiwiri.

Ngati mfundo A yasinthidwa pafupi ndi chaji 1 ndiye kuti:

Mtunda pakati pa cholipiritsa 1 ndi mfundo A (r)_1A) = ¼ a

Mtunda pakati pa cholipiritsa 2 ndi mfundo A (r)_2A) = ¾ a

Mphamvu yamagetsi yopangidwa ndi mphamvu + Q pa mfundo A :

Choyimitsa choyesera ndi chabwino ndipo choyimitsa 1 ndi chabwino kotero kuti njira ya magetsi ikupita ku choyimitsa 2.

Munda wamagetsi wopangidwa ndi mphamvu ya -Q pa mfundo A :

Choyimitsa choyesera ndi chabwino ndipo choyimitsa chachiwiri ndi choipa kotero njira ya magetsi ikupita ku choyimitsa chachiwiri.

Mphamvu yamagetsi yomwe imabwera pambuyo pake pa mfundo A :

Yankho lolondola ndi C.

8. Tinthu tiwiri chilichonse chili ndi mphamvu ya q_A = 1 μC ndi q_B = 4 μC zimayikidwa 4 cm kutali (k = 9 x 10⁹ N m² C^-2Mphamvu yamagetsi pakati pa q_A ndi q_B ndi…

A. 6,75 x 10⁷ NC^-1

B. 4,50 x 10⁷ NC^-1

C. 4,20 x 10⁷ NC^-1

D. 3,60 x 10⁷ NC^-1

E. 2,25 x 10⁷ NC^-1

Zokambirana

Ndizodziwika kuti :

Ndalama A (q)_A) = 1 μC = 1 x 10^-6 C

Cholipiritsa B (q)_B) = 4 μC = 4 x 10^-6 C

k = 9 x 10⁹ N m² C^-2

Mtunda pakati pa zolipiritsa A ndi B (r)_AB) = 4 cm = 0,04 mamita

Mtunda pakati pa cholipiritsa A ndi pakati (r)_A) = mamita 0,02

Mtunda pakati pa cholipiritsa B ndi pakati (r)_B) = mamita 0,02

Anafunsa : Mphamvu yamagetsi pakati pa q_A ndi q_B ndi…

Yankhani :

Kuwerengera mphamvu ya magetsi pakati q_A ndi q_B , poganiza kuti pali choyezera chabwino chomwe chili pakati pa zoyezera ziwirizi. Kupezeka kwa choyezera chabwino kumakhudza komwe magetsi akupita.

Mphamvu yamagetsi yopangidwa ndi mphamvu A pakati pa malo :

Choyimitsa choyesera ndi chabwino ndipo choyimitsa A ndi chabwino kotero kuti njira yamagetsi ikupita ku choyimitsa B.

Mphamvu yamagetsi yopangidwa ndi chaji B pakati pa malo :

Choyimitsa choyesera ndi chabwino ndipo choyimitsa B ndi chabwino kotero kuti njira yamagetsi ikupita ku choyimitsa A.

Malo ogwiritsira ntchito magetsi omwe ali pakati :

E_A ndi E_B njira yosiyana.

E = E_B - E_A = 9x10 pa⁷ - 2,25 x 10⁷ = 6,75x10 pa⁷ NC^-1

Yankho lolondola ndi A.

9. Yang'anani chithunzi cha ma point charge awiri pansipa! Kodi point P ili kuti kotero kuti mphamvu yamagetsi pa point P ikhale zero? (k = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C)

A. pakati pa Q₁ ndi Q₂

B. 6 cm kumanja kwa Q₂

C. 6 cm kumanzere kwa Q₁

D. 2 cm kumanja kwa Q₂

E. 2 cm kumanzere kwa Q₁

Zokambirana

Kuti muwerenge mphamvu yamagetsi pa mfundo P, ganizirani kuti pali mayeso abwino pa mfundo P. Q₁ zabwino ndi Q₂ negative, chifukwa chake mfundo P iyenera kukhala kumanja kwa Q₂ kapena kumanzere kwa Q₁. Ngati mfundo P ili kumanzere kwa Q₁; mphamvu yamagetsi yopangidwa pa mfundo Q₁ pamalo P njira ili kumanzere (kutali ndi Q₁) ndi mphamvu yamagetsi yopangidwa ndi Q₂ pamalo P njira ili kumanja (ku Q)₁). Chifukwa chakuti mbali ya magetsi ili moyang'anizana, ziwirizi zimalekanitsa kuti mphamvu ya magetsi pamalo a P ikhale zero.

Ndizodziwika kuti :

Q₁ = +9 μC = +9 x 10^-6 C

Q₂ = -4 μC = -4 x 10^-6 C

k = 9 x 10⁹ Nm²C^-2

Mtunda pakati pa chaji 1 ndi chaji 2 = 3 cm

Mtunda pakati pa Q₁ ndi mfundo P (r_1P) = a

Mtunda pakati pa Q₂ ndi mfundo P (r_2P) = 3 cm + a

Anafunsa : Kodi mfundo P ili kuti kotero kuti mphamvu yamagetsi pa mfundo P ikhale yofanana ndi zero?

Yankhani :

Point P ili kumanzere kwa Q₁.

Mphamvu yamagetsi yomwe imabwera pambuyo pake pa mfundo A :

Gwiritsani ntchito fomula ya ABC kuti mudziwe mtengo wa a.

10. Yang'anani chithunzi chotsatirachi! Chaja q₃ imayikidwa pa mtunda wa 5 cm kuchokera ku q₂, kenako mphamvu yamagetsi yomwe ikuperekedwa q₃ ndi… (1 µC = 10^-6 C)

A. 4,6 x 10⁷ NC^-1

B. 3,6 x 10⁷ NC^-1

C. 1,6 x 10⁷ NC^-1

D. 1,4 x 10⁷ NC^-1

E. 1,3 x 10⁷ NC^-1

Zokambirana

Ndalama q₃ imayikidwa pa mtunda wa 5 cm kuchokera ku q₂, kutanthauza kuti osati kumanzere kwa q₂ koma kumbali yakumanja q₂Ngati mbali yakumanzere q₂ ndiye kuti mphamvu yamagetsi yomwe ikubwera ndi zero. Izi zili choncho chifukwa mtunda pakati pa ma chaji ndi q₃ ndi cholipiritsa q₁ ndi q₂ ndi 5 cm ndipo kukula kwa mphamvu ndi q₁ wofanana ndi mtengo wa q₂.

Chifukwa cholipiritsa q₃ njira yabwino kenako yolunjika munda wamagetsi pa mtengo q₃ ku mlandu wotsutsa q₂ (E₂) ndipo kutali ndi mtengo wabwino q₁ (E₁). Mphamvu yamagetsi yomwe imabwera chifukwa cha mphamvu yamagetsi ndi chiwerengero cha mphamvu yamagetsi E₁ ndi E₂.

Ndizodziwika kuti :

Ndalama q₁ = 5 µC = 5 x 10^-6 Coulomb

Ndalama q₂ = 5 µC = -5 x 10^-6 Coulomb

Mtunda pakati pa zolipiritsa q₁ ndi kulipira q₃ (r₁) = 15 cm = 0,15 m = 15 x 10^-2 mita

Mtunda pakati pa zolipiritsa q₂ ndi kulipira q₃ (r₂) = 5 cm = 0,05 m = 5 x 10^-2 mita

k = 9 x 10⁹ N m² C^-2

Anafunsa Mphamvu yamagetsi yomwe ikugwiritsidwa ntchito q₃

Yankhani :

Mphamvu yamagetsi 1

E₁ = kq₁ /r₁²

E₁ = (9 x 10⁹)(5 x 10^-6) / (15 x 10^-2)²

E₁ = (45 x 10³) / (225 x 10^-4)

E₁ = 0,2x10 pa⁷ N / C

Mphamvu yamagetsi 2

E₂ = kq₂ /r₂²

E₂ = (9 x 10⁹)(5 x 10^-6) / (5 x 10^-2)²

E₂ = (45 x 10³) / (25 x 10^-4)

E₂ = 1,8x10 pa⁷ N / C

Mphamvu yamagetsi yochokera pamenepo

Mphamvu yamagetsi yomwe imabwera chifukwa cha mphamvu yamagetsi q₃ ndi:

E = E₂ - E₁ = (1,8 x 10⁷) – (0,2 x 10⁷) = 1,6 x 10⁷ N / C

Kulowera kwa magetsi kuli kumanzere kapena ku E₂.

Yankho lolondola ndi C.

11. Ma charge awiri amagetsi alekanitsidwa monga momwe zasonyezedwera pachithunzichi. Mphamvu yamagetsi pamalo P ndi… (k = 9 x 10⁹ N m² C^-2)

A. 9,0 x 10⁹ NC^-1

B. 4,5 x 10⁹ NC^-1

C. 3,6 x 10⁹ NC^-1

D. 5,4 x 10⁹ NC^-1

E. 4,5 x 10⁹ NC^-1

Zokambirana

Ndizodziwika kuti :

Ndalama q_A = +2,5 C

Ndalama q_B = -2 C

Mtunda pakati pa zolipiritsa q_A ndi mfundo P (r_A) = 5 m

Mtunda pakati pa zolipiritsa q_B ndi mfundo P (r_B) = 2 m

k = 9 x 10⁹ N m² C^-2

Anafunsa Mphamvu yamagetsi pamalo P

Yankhani :

Mphamvu yamagetsi A

E_A = kq_A /r_A²

E_A = (9 x 10⁹)(2,5) / (5)²

E_A = (22,5 x 10⁹/ 25

E_A = 0,9x10 pa⁹ N / C

Mphamvu yamagetsi B

E_B = kq_B /r_B²

E_B = (9 x 10⁹)(2) / (2)²

E_B = (18 x 10⁹/ 4

E_B = 4,5x10 pa⁹ N / C

Mphamvu yamagetsi yochokera pamenepo

Mphamvu yamagetsi yomwe imabwera chifukwa cha P ndi iyi:

E = E_B - E_A = (4,5 - 0,9) x 10⁹ = 3,6x10 pa⁹ N / C

Kulowera kwa magetsi kuli kumanzere kapena ku E_B.

Yankho lolondola ndi C.

12. Ma chaji awiri amagetsi aliwonse ali ndi chaji Q₁ = -40 µC ndi Q₂ = +5 µC ili pamalo omwe akuwonetsedwa pachithunzichi (k = 9 x 10⁹ Nm².C^-2 ndipo 1 µC = 10^-6 C), mphamvu yamagetsi pamalo P ndi…

A. 2,25 x 10⁶ NC^-1

B. 2,45 x 10⁶ NC^-1

C. 5,25 x 10⁶ NC^-1

D. 6,75 x 10⁶ NC^-1

E. 9,00 x 10⁶ NC^-1

Zokambirana

Ndizodziwika kuti :

Ndalama q₁ = -40 µC = -40 x 10^-6 C

Ndalama q₂ = +5 µC = +5 x 10^-6 C

Mtunda pakati pa zolipiritsa q₁ ndi mfundo P (r₁) = 40 cm = 0,4 m = 4 x 10^-1 m

Mtunda pakati pa zolipiritsa q₂ ndi mfundo P (r₂) = 10 cm = 0,1 = 1 x 10^-1 m

k = 9 x 10⁹ N m² C^-2

Anafunsa Mphamvu yamagetsi pamalo P

Yankhani :

Mphamvu yamagetsi 1

E₁ = kq₁ /r₁²

E₁ = (9 x 10⁹)(40 x 10^-6) / (4 x 10^-1)²

E₁ = (360 x 10³) / (16 x 10^-2)

E₁ = 22,5x10 pa⁵ N / C

Mphamvu yamagetsi 2

E₂ = kq₂ /r₂²

E₂ = (9 x 10⁹)(5 x 10^-6) / (1 x 10^-1)²

E₂ = (45 x 10³) / 1 x 10^-2

E₂ = 45x10 pa⁵ N / C

Mphamvu yamagetsi yochokera pamenepo

Mphamvu yamagetsi yomwe imabwera chifukwa cha P ndi iyi:

E = E₂ - E₁ = (45 - 22,5) x 10⁵ = 22,5x10 pa⁵ N / C

E = 2,25 x 10⁶ N / C

Kulowera kwa magetsi kuli kumanja kapena ku E₂.

Yankho lolondola ndi A.

13. Kuchokera pachithunzi chotsatira cha chaji, chomwe chikuwonetsa mizere ya mphamvu pa ma chaji awiri oyandikana kwambiri ndi...

Zokambirana

Mizere yamagetsi, kapena mizere ya mphamvu, imatengedwa kuchokera ku chaji yabwino kupita ku chaji yoyipa. Ngati chaji yabwino ndi yoyipa zigwirizanitsidwa, mizere ya mphamvu imawoneka ngati yankho A.

Yankho lolondola ndi A.

8. Ma chaji awiri amagetsi amagwirizanitsidwa pamodzi mu chingwe cholumikizira, zomwe zimapangitsa kuti mizere yamagetsi ikhale. Chithunzi cholondola ndi…

Zokambirana

Yankho lolondola ndi D.

9. Mizere yolondola ya mphamvu pakati pa milandu iwiri ndi…

Zokambirana

Yankho lolondola ndi D.

14. Onani chithunzi chotsatira cha ma point charges awiri!

Kodi mfundo P ili kuti kotero kuti mphamvu yamagetsi pa mfundo P ikhale yofanana ndi zero?

(k = 9.10⁹ Nm².C^-2, 1 µC = 10^-6 C)

A. 1 cm kumanja kwa q₁

B. 1 cm kumanja kwa q₂

C. ½ cm kumanja kwa q₂

D. ½ cm kumanzere kwa q₁

E. ½ cm kumanja kwa q₁

Zokambirana

Amadziwika kuti:

Cholipiritsa 1 (q)₁) = -9 µC = -9.10^-6 Coulomb

Cholipiritsa 2 (q)₂) = 1 µC = 1.10^-6 Coulomb

Mtunda pakati pa q₁ ndi q₂ (r₁₂) = 1 cm

k = 9.10 ndi⁹ Nm².C^-2

Anafunsa kuti: Kodi mfundo P ili kuti kotero kuti mphamvu yamagetsi pa mfundo P ikhale yofanana ndi zero?

Yankho:

E₁ = mphamvu yamagetsi yopangidwa ndi q₁ pa mfundo P

Malangizo E₁ kupita ku q₁ chifukwa q₁ chizindikiro choipa

E₂ = mphamvu yamagetsi yopangidwa ndi q₂ pa mfundo P

Malangizo E₂ khalani kutali ndi q₂ chifukwa q₂ chizindikiro chabwino

r₁ = mtunda pakati pa P ndi q₁ = x + 1

r₂ = mtunda pakati pa P ndi q₂ =x

Mphamvu yamagetsi pamalo P ndi zero:

Gwiritsani ntchito fomula ya ABC:

Mtunda pakati pa P ndi q₂ = x = 0,5 cm.

Mfundo P ili 0,5 cm kumanja kwa q₂ kapena pa 0,25 cm kumanzere kwa q₁.

Yankho lolondola ndi C.

15 PSamalani ndi zoyimitsa ziwiri zomwe zili patali pansipa!

Ngati mphamvu yamagetsi pamalo P ndi k Q/x², ndiye kuti mtengo wa x ndi….

A. 1/3 a

B. 2/3 a

C. a

D. 3/2 a

E. 2a

Zokambirana

Amadziwika kuti:

E_P = k Q / x²

Anafunsa kuti: mtengo wa x

Yankho:

Gwiritsani ntchito fomula ya ABC:

Yankho lolondola ndi A.

16. Mafunso a Mayeso a Dziko Lonse a SMA/MA Physics U-ZC-2013/2014 Nambala 27

Onani chithunzi chotsatira cha ma point charges awiri!

Kodi mfundo P ili kuti kotero kuti mphamvu yamagetsi pa mfundo P ikhale yofanana ndi zero?
(k = 9.10⁹ Nm².C^-2, 1 µC = 10^-6 C)

1. 1 cm kumanja kwa q₁
2. 1 cm kumanja kwa q₂
3. ½ cm kumanja kwa q₂
4. ½ cm kumanzere kwa q₁
5. ½ cm kumanja kwa q₁

Zokambirana
Amadziwika kuti:
Cholipiritsa 1 (q)₁) = -9 µC = -9.10^-6 Coulomb
Cholipiritsa 2 (q)₂) = 1 µC = 1.10^-6 Coulomb
Mtunda pakati pa q₁ ndi q₂ (r₁₂) = 1 cm
k = 9.10 ndi⁹ Nm².C^-2
Anafunsa kuti: Kodi mfundo P ili kuti kotero kuti mphamvu yamagetsi pa mfundo P ikhale yofanana ndi zero?
Yankho:

E₁ = mphamvu yamagetsi yopangidwa ndi q₁ pa mfundo P
Malangizo E₁ kupita ku q₁ chifukwa q₁ chizindikiro choipa
E₂ = mphamvu yamagetsi yopangidwa ndi q₂ pa mfundo P
Malangizo E₂ khalani kutali ndi q₂ chifukwa q₂ chizindikiro chabwino
r₁ = mtunda pakati pa P ndi q₁ = x + 1
r₂ = mtunda pakati pa P ndi q₂ =x

Mphamvu yamagetsi 1:
Mphamvu yamagetsi 2:

Mphamvu yamagetsi pamalo P ndi zero:
a = 8, b = -2, c = -1
Gwiritsani ntchito fomula ya ABC:

Mtunda pakati pa P ndi q₂ = x = 0,5 cm.
Mfundo P ili 0,5 cm kumanja kwa q₂ kapena pa 0,25 cm kumanzere kwa q₁.

Yankho lolondola ndi C.

17. Mafunso a Mayeso a Dziko Lonse a SMA/MA Physics U-ZC-2013/2014 Nambala 27

Taganizirani zoyimitsa ziwiri zomwe zili patali pansipa!
Ngati mphamvu yamagetsi pamalo P ndi k Q/x², ndiye kuti mtengo wa x ndi….

1. 1/3 ndi
2. 2/3 ndi
3. a
4. 3/2 ndi
5. 2a

Zokambirana
Amadziwika kuti:
E_P = k Q / x²
Anafunsa kuti: mtengo wa x
Yankho:
E₁ = mphamvu yamagetsi pamalo P potengera mphamvu -Q
r₁ = mtunda pakati pa chaji –Q ndi mfundo P = x
E₂ = mphamvu yamagetsi pamalo P potengera mphamvu +32Q
r₂ = mtunda pakati pa chaji +32Q ndi mfundo P = a + x

Gwiritsani ntchito fomula ya ABC:

Yankho lolondola ndi A.