Answer:
10 V.
Explanation:
The relation between electric field and electric potential is as follows
[tex]-\int\limits^a_b \vec{E}d\vec{l} = V_a - V_b[/tex]
Since the electric field is zero in the region, then the left-hand side of the above equation becomes zero.
[tex]0 = V_a - V_b\\V_a = V_b[/tex]
This means that if electric field is zero in a region, then the electric potential is constant in that region. Therefore, the electric potential 2 m from the center of the sphere is equal to the potential of the sphere, which is 10 V.
