Question

In the figure the potential at A is where the potential at B is zero ​

Answer 1

Answer:

Potential at A: 4v

Explanation:

To solve this question we need to remember two things

1) when we move in the direction of flow of current then resistances provides negative potential.(V =iR)

2)Moving from positive side of battery to negative side it provides negative voltage and Vice versa is also true.

so, using this concept we can write:

====> Va - 2×1 - 2 = Vb

====> Va - 4 = Vb

====> Va = Vb + 4

now, value at point Vb = 0 (Given)

====> Va = 4 Volt

Therefore, Potential at A is 4 Volt

Hope it helps with your doubt and clearing your concept.

Best of luck for bright future.

Regards:

Aakash Maurya

Answer 2

Answer:

I dont know

Explanation:

By the way,

Thanks for the points