Please send the solution of question 30 only.
Dear student
In the last part i have used a superposition theorem to make solution understandable. you can also understand the question without using superposition theorem.If you look at the solution then we can see that current in the upper wire is zero. But that zero current is due to two factor one is due to voltage at potential C and another current is due to battery of 6v and summation of both the current is zero.If you find individual current due to both the factor then you will get 2amp due toe each but in opposite direction.
hope it will help you
regards
In the last part i have used a superposition theorem to make solution understandable. you can also understand the question without using superposition theorem.If you look at the solution then we can see that current in the upper wire is zero. But that zero current is due to two factor one is due to voltage at potential C and another current is due to battery of 6v and summation of both the current is zero.If you find individual current due to both the factor then you will get 2amp due toe each but in opposite direction.
hope it will help you
regards