Ihe atụ nke Ike Eletriki

Ihe atụ ise nke ajụjụ ndị nwere ike ime n'ọkụ eletrik

1. Kpebisie ike ike eletrik na ebe 1 cm site na chajị q = 5,0 μC. Coulomb's constant (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C.
Mkparịta ụka
A maara na:
Anya dị anya site na chaja (r) = 1 cm = 1/100 m = 0,01 m = 10^-2 m
Chajị (q) = 5,0 μC = 5,0 x 10^-6 Ulo olu
A jụrụ: Ike eletriki (V)
Azịza:

Ike eletriki:

Ike eletrik bụ 4,5 x 10 ⁶ Volts

2. Chajị Q₁ = 5,0 μC na chajị Q₂ = 6,0 μC. Ihe na-agbanweghi agbanwe nke Coulomb (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C. Isi A dị n'etiti abụọ ahụ ibuChọpụta ike eletrik na isi A!
Mkparịta ụka
A maara na:
Chajị Q₁ = -5,0 μC = -5,0 x 10^-6 C
Anya nke isi ihe A site na Q₁ = 10 cm = 0,1 m = 10^-1 m
Chajị Q₂ = 6,0 μC = 6,0 x 10^-6 C
Anya nke isi ihe A site na Q₂ = 10 cm = 0,1 m = 10^-1 m
Coulomb na-agbanwe agbanwe (k) = 9 x 10⁹ Nm²C^-2
A jụrụ: Ike eletriki na isi A
Azịza:

Ike eletriki 1:

Ike eletriki 2:

Ike eletrik na isi A:

V = V₂ - V₁
V = (54 – 45) x 10⁴
V = 9 x 10⁴
Ike eletrik na isi A bụ 9 x 10⁴ volt

3. Chajị q₁ = 5,0 μC na chajị q₂ = 6,0 μC. Ihe na-agbanweghi agbanwe nke Coulomb (k) = 9 x 10⁹ Nm²C^-2, 1 μC = 10^-6 C. Chọpụta ike eletrik na isi A!
Mkparịta ụka
A maara na:
Chajị Q₁ = -5,0 μC = -5,0 x 10^-6 C
Anya nke isi ihe A site na Q₁ = 40 cm = 0,4 m = 4 x 10^-1 m
Chajị Q₂ = 6,0 μC = 6,0 x 10^-6 C
Anya nke isi ihe A site na Q₂ = 50 cm = 0,5 m = 5 x 10^-1 m
Ọnụọgụ na-agbanweghi agbanwe nke Coulomb (k) = 9 x 10⁹ Nm²C^-2
A jụrụ: Ike eletriki na isi A
Azịza:

Ike eletriki 1:

Ike eletriki 2:

Ike eletrik na isi A:

V = V₁ +V₂
V = (-11,25 + 10,8) x 10⁴
V = -0,45 x 10⁴
V = -4,5 x 10³
Ike eletrik na isi A bụ -4,5 x 10³ volt

4. Ajụjụ Ule Mba maka SMA/MA Physics U-ZC-2013/2014 Nke 28
A na-ana chajị ọkụ eletrik dị mma nke 500 µC n'oghere nke nwere oghere na-eduzi oghere dịka egosiri na foto a:
Olee nke ziri ezi n'ime okwu ndị a?
A. Ike eletriki na ebe P = ugboro abụọ ike eletriki na ebe R
B. Ike eletrik dị na isi Q bụ otu ihe ahụ dị na isi P.
C. Ike eletriki na ebe T = ugboro abụọ ike eletriki na ebe Q
D. Ike eletrik dị na isi P bụ otu ihe ahụ dị na isi T.
E. Ike eletrik dị na isi ihe P, Q, na R bụ otu ihe ahụ.
Mkparịta ụka
Ya mere, oghere na-eduzi oghere enweghị chaja eletrik n'ime okirikiri ahụ. itinye iwu Gauss n'ọrụ, ọ bụrụ na enweghị chaja eletrik n'ime oghere oghere ahụ, mgbe ahụ enweghị oghere eletrik n'ime oghere oghere ahụ.

Ọgba eletriki nwere njikọ na ọdịiche ikike eletrik nke a na-egosipụta site na nha anya V _ab = E d , ebe V _ab = ọdịiche ikike dị n'etiti isi abụọ, E = ọgba eletriki na d = anya dị n'etiti isi abụọ. E = 0 yabụ Vab = 0. Ọgba eletriki bụ efu yabụ ọdịiche ikike dị bụ efu. Ọdịiche ikike efu pụtara na enweghị ọdịiche ikike eletrik dị n'ime ọgba oghere. N'ikwu ya n'ụzọ ọzọ, ikike eletrik nke isi ihe niile dị n'ime ọgba oghere bụ otu. Oke ikike eletrik dị n'ime ọgba oghere ahụ bụ otu ihe ahụ na ikike eletrik dị n'elu ọgba oghere ahụ.

Ka ọ na-aga n'ihu site n'elu bọọlụ ahụ, otú ahụ ka ikike eletrik dị obere n'ebe ahụ. Nke a dabere na nha nhata nke ọdịiche ikike eletrik V _ab = k Q / r , ebe r = anya site na etiti bọọlụ ahụ ruo na ebe a na-agbakọ ọdịiche ikike ya . Dabere na nha nhata a, anya (r) dị n'ụzọ megidere nhata na ọdịiche nwere ike (V _ab ), yabụ ka anya nke isi si dị site na etiti bọọlụ ahụ ka ukwuu, otú ahụ ka ọdịiche ike eletrik dị n'etiti etiti bọọlụ ahụ na isi ahụ dị obere. Isi R dị nso na etiti bọọlụ ahụ ebe isi T dị anya site na etiti bọọlụ ahụ, yabụ ọdịiche nwere ike dị n'etiti isi R na etiti bọọlụ ahụ ka ukwuu, ebe ọdịiche nwere ike dị n'etiti isi T na etiti bọọlụ ahụ pere mpe. N'ikwu ya n'ụzọ ọzọ, ikike eletrik dị na isi R karịrị ikike eletrik dị na isi T.

Rịba ama: Chọpụta ọdịiche dị n'etiti ikike eletrik na ikike eletrik . Enweghị ike ịgbakọ ikike eletrik , ebe enwere ike ịgbakọ ọdịiche ikike eletrik site na iji usoro V _ab = k Q / r . Ọ bụrụ na enwere ike ịgbakọ mpaghara eletriki n'ime oghere, mgbe ahụ isi ihe ọ bụla dị na oghere ahụ nwere ikike eletrik, ebe a na-agbakọ ọdịiche ikike eletrik site na iji isi ihe abụọ dị iche iche tụnyere. N'ikwu ya n'ụzọ ọzọ, n'otu ebe ahụ enwere ike eletrik mana enweghị ọdịiche ikike eletrik n'oge ahụ.

Azịza ziri ezi bụ B na E.

5. Ajụjụ Ule Mba maka SMA/MA Physics U-ZC-2013/2014 Nke 28
Oghere na-eduzi oghere nwere ike ịbụ 4 µC na radius nke 10 cm dịka egosiri na eserese a. Olee okwu gbasara ike eletrik (V) dị na okirikiri ahụ ziri ezi?
A. V_A > V_B
B. V_B > V_A
C. V_A = V_B
D.V_A <V_C
E.V_B <V_C
Mkparịta ụka
Dabere na nkọwa dị na ajụjụ nọmba 1, V_A = V_B, V_A > V_C na V_B > V_C.
Azịza ziri ezi bụ C.