Answer:
[tex] V =2.18 \times 10^5\ V[/tex]
Explanation:
given,
radius of the sphere, R = 54.5 cm
R = 0.545 m
Electric magnitude of the conductor,E = 4 x 10⁵ V/m
Electric potential just outside of the surface,V = ?
we know,
[tex]E = \dfrac{V}{r}[/tex]
[tex] V = E.r[/tex]
[tex] V =4\times 10^5 \times 0.545[/tex]
[tex] V =2.18 \times 10^5\ V[/tex]
Hence, the Potential just outside the surface is equal to [tex] V =2.18 \times 10^5\ V[/tex]