A Conducting Sphere of Radius 20 Cm Is Charged So $\times$

question 6

Multiple Choice

A conducting sphere of radius 20 cm is charged so that the electric field reaches 3.0 $\times$ 10⁵ V/m at its surface.What is the potential at the surface of the sphere?

• A) 3.0 \(\times\) 10⁴ V
• B) 1.5 \(\times\) 10⁴ V
• C) 4.5 \(\times\) 10⁴ V
• D) 6.0 \(\times\) 10⁴ V
• E) 2.7 \(\times\) 10⁵ V