Question 659: Current Electricity

Question

See the electrical circuit shown in this figure. Which of the following equations is a correct equation for it ?
![](https://neetcare-image.cdn.examgoal.net/1qpqahkk7yhgqyz/3f6440e9-b261-4fa2-a29f-f435b2b93ba7/4b06c5b0-69ba-11ea-aedc-f1c8d8e0194b/file-1qpqahkk7yhgqz0-320w.jpg)

Accepted Answer

Applying KirchhoffÃ¢ÂÂs equation to the loop ABFE,
Ã¢ÂÂ (i
1
+ i
2
)R Ã¢ÂÂ i
1
r
1
+ ${\varepsilon _1}$ = 0
$ \Rightarrow $  ${\varepsilon _1}$ Ã¢ÂÂ (i
1
+ i
2
)R Ã¢ÂÂ i
1
r
1
= 0
![](https://neetcare-image.cdn.examgoal.net/1qpqahkk7yhjm7h/d0da3a0c-ce25-4cba-bc57-474035e7c619/9ac61dd0-69ba-11ea-aedc-f1c8d8e0194b/file-1qpqahkk7yhjm7i-320w.jpg)

Answer

${\varepsilon _2} - {i_2}{r_2} - {\varepsilon _1} - {i_1}{r_1} = 0$

Answer

$ - {\varepsilon _2} - \left( {{i_1} + {i_2}} \right)R + {i_2}{r_2} = 0$

Answer

${\varepsilon _1} - \left( {{i_1} + {i_2}} \right)R + {i_1}{r_1} = 0$

Answer

${\varepsilon _1} - \left( {{i_1} + {i_2}} \right)R - {i_1}{r_1} = 0$

Current Electricity

See the electrical circuit shown in this figure. Which of the following equations is a correct equation for it ?

Choose the correct answer: