Question

A chunk of conductor with a hollowed out core has charge placed on it until its potential (relative to infinity) is ${\varphi }_0$. What is the potential inside the core?

• A. $0$
• B. $\infty$
• C. ${\varphi }_0$
• D. None of these

Answer 1

The correct option is C ${\varphi }_0$

Given a conductor with hollowed out core having potential ${\varphi }_0$. Inside the conductor is hollow, the net electric field inside is zero. It means the difference in potential inside and on the surface is zero. So, the potential inside the core $=$ potential on the conductor $={\varphi }_0$.