Question

A hollow insulated conduction sphere is given a positive charge of 10 μC. What will be the electric field at the centre of the sphere if its radius is 2 meters?

• A. Zero
• B. 5 μCm\(^{-2}\)
• C. \( 8 \, \mu C/m^2 \)
• D. 5 \( \mu C/m^2 \)

Hint:

For a spherical conductor, the electric field inside is zero, and the field outside can be calculated using Gauss's law.

Answer 1

The Correct Option is A

Step 1: Use Gauss's law.
For a hollow spherical conductor with charge, the electric field inside the sphere is zero at the center by Gauss’s law.
Step 2: Conclusion.
Thus, the electric field at the center of the sphere is zero.
Final Answer: \[ \boxed{Zero} \]