1. Dabere na eserese dị n'okpuru, chọpụta ọkụ eletrik site na R1.
A maara:
Resistor 1 (R1 ) = 4 Ω
Resistor 2 (R2 ) = 4 Ω
Resistor 3 (R3 ) = 8 Ω
Voltaji eletriki (V) = Voltaji iri anọ
Achọrọ: Ọkụ eletrik ruo R1
Ngwọta:
Ọkụ eletrik na-esi n'ike dị elu gaa n'ike dị ala. Ụzọ ọkụ eletrik dị na sekit dị n'elu bụ otu ụzọ ahụ dị ka ụzọ elekere.
Ọkụ eletrik nke na-esi na batrị ahụ apụta
Nke mbụ, gbakọọ nguzogide nhata ( R). Mgbe nke ahụ gasịrị, gbakọọ ọkụ eletrik site na iji usoro iwu Ohm :
V = IR ma ọ bụ I = V / R
V = voltaji , I = ọkụ eletrik , R = nguzogide nhata
Nguzogide nhata ahụ:
Njikọta Resistor R 1 na Resistor R 2 na-agakọ n'otu oge . Nguzogide nhata:
1/R 12 = 1/R 1 + 1/R 2 = 1/4 + 1/4 = 2/4
R 12 = 4/2 = 2 Ω
Njikọta Resistor R 12 na Resistor R 3 n'usoro . Nguzogide nhata:
R = R 12 + R 3 = 2 + 8 = 10 Ω
Ọkụ eletrik nke na-esi na batrị ahụ apụta:
I = V / R = 40 / 10 = 4 A
Ọkụ eletrik nke na-esi na batrị ahụ apụta bụ 4 Ampere.
Voltaji eletriki V ab na V bc
KirchhoffIwu mbụ nke na-ekwu na na ebe njikọ ọ bụla, ngụkọta nke ọkụ niile na-abanye na njikọ ahụ ga-aha nhata ngụkọta nke ọkụ niile na-apụ na njikọ ahụ.
Dabere na iwu mbụ nke Kirchhoff , a na-ekwu na ọ bụrụ na ọkụ eletrik na-esi na batrị ahụ apụta bụ 4 A, mgbe ahụ ọkụ eletrik na-agafe ab hà nhata 4 Ampere, ya mere ọkụ eletrik na-agafe bc bụkwa 4 Ampere.
Voltaji eletriki V ab :
V ab = I ab R ab = (4)(2) = 8 Volts
Voltaji eletriki V bc :
V bc = I bc R bc = (4)(8) = 32 Volts
A na-ejikọ sekit dị n'elu n'usoro ka voltaji eletriki niile wee bụrụ V = V ab + V bc = 8 Volts + 32 Volts = 40 Volts.
Ọkụ eletrik na-agafe R 1 = 4 Ω
I 1 = V ab / R 1 = 8 Volts / 4 Ohms = 2 A
I 2 = V ab / R 2 = 8 Volts / 4 Ohms = 2 A
Ọkụ eletrik nke na-esi na batrị apụta bụ 4 A. Mgbe ọ rutere ebe a, a na-ekewa ọkụ eletrik ahụ ụzọ abụọ, ọkụ eletrik nke 2 Ampere na-agafe na resistor R 1 na
Ọkụ eletrik nke 2 A na-agafe na resistor R 2. 2 A + 2 A = 4 A.
2. Dabere na eserese dị n'okpuru, chọpụta ọkụ eletrik nke na-agafe na resistor 4-Ω.
A maara:
Resistor 1 (R1 ) = 6 Ω
Resistor 2 (R2 ) = 4 Ω
Resistor 3 (R3 ) = 1.6 Ω
Voltaji eletriki (V) = Voltaji iri na isii
Achọtara: Ọkụ eletrik na-agafe 4 Ω
Ngwọta:
Ọkụ eletrik na-esi n'ike dị elu gaa n'ike dị ala. Ụzọ ọkụ eletrik dị na sekit dị n'elu bụ otu ụzọ ahụ dị ka ụzọ elekere.
Ọkụ eletrik nke na-esi na batrị ahụ apụta
Nguzogide nhata ahụ:
Njikọta Resistor R 1 na Resistor R 2 na-agakọ n'otu oge. Resistor nke nhata:
1/R 12 = 1/R 1 + 1/R 2 = 1/6 + 1/4 = 2/12 + 3/12 = 5/12
R 12 = 12/5 = 2.4 Ω
A na-ejikọ Resistor R 12 na Resistor R 3 n'usoro. Resistor nhata:
R = R 12 + R 3 = 2.4 + 1.6 = 4 Ω
Ọkụ eletrik nke na-esi na batrị ahụ apụta:
I = V / R = 16 / 4 = 4 A
Voltaji eletriki V ab na V bc
Dabere na iwu mbụ nke Kirchhoff, kwubiri na ọ bụrụ na ọkụ eletrik na-esi na batrị ahụ apụta bụ 4 A, mgbe ahụ ọkụ eletrik na-agafe ab hà nhata 4 Ampere, otú ahụkwa ka ọkụ eletrik na-agafe bc hà nhata 4 Ampere.
Voltaji eletriki V ab :
V ab = I ab R ab = (4)(2.4) = 9.6 Volts
Voltaji eletriki Vbc :
V bc = I bc R bc = (4)(1.6) = 6.4 Volts
A na-ejikọ sekit dị n'elu n'usoro ka voltaji eletrik niile wee bụrụ V = V ab + V bc = 9.6 Volts + 6.4 Volts = 16 Volts.
Ọkụ eletrik nke na-agafe R 2 = 4 Ω
I 1 = V ab / R 1 = 9.6 Volts / 6 Ohms = 1.6 A
I 2 = V ab / R 2 = 9.6 Volts / 4 Ohms = 2.4 A
Ọkụ eletrik nke na-esi na batrị apụta bụ 4 A. Mgbe ọ rutere ebe a, a na-ekewa ọkụ eletrik ahụ ụzọ abụọ,
Ọkụ eletrik 1.6 A na-agafe na resistor R 1 na ọkụ eletrik 2.4 A na-agafe na resistor R 2. 1.6 A + 2.4 A = 4 A.
