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  4. A change Q placed at the center of a metallic spherical shell with inner and outer radii R1 and R2 respectively. The normal component of the electric field at any point on the Gaussian surface with radius between R1 and R2 will be

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Q. A change $Q$ placed at the center of a metallic spherical shell with inner and outer radii $R_1$ and $R_2$ respectively. The normal component of the electric field at any point on the Gaussian surface with radius between $R_1$ and $R_2$ will be

KEAMKEAM 2017Electric Charges and Fields

Solution:

The induced charges will appear at the inner and outer surface of the metallic spherical shell. Also there is no charge in between the metal of the shell. So, the normal component of the electric field at any point on the Gaussian surface with radius between $R_{1}$ and $R_{2}$ will be zero.