Question

Under electrostatic condition of a charged conductor, which among the following statements is true?

• A. The electric field on the surface of a charged conductor is \( \frac{\sigma}{2 \epsilon_0} \), where \( \sigma \) is the surface charge density
• B. The electric potential inside a charged conductor is always zero
• C. Any excess charge resides on the surface of the conductor
• D. The net electric field is tangential to the surface of the conductor

Answer 1

The Correct Option is C

In electrostatics, it is a well-established fact that:
- Excess charge always resides on the surface of a conductor. This is because like charges repel each other, so they tend to spread out over the surface of the conductor. 
- The electric field inside a conductor in electrostatic equilibrium is zero because the charges move to cancel out any internal fields. 
- The electric field at the surface of a conductor is perpendicular to the surface (not tangential). 

Thus, the correct statement is that any excess charge resides on the surface of the conductor.