Question 377: Electrostatics & Capacitance

Question

A solid metal sphere of radius R having charge q is enclosed inside the concentric spherical shell of inner radius a and outer radius b as shown in the figure. The approximate variation electric field $$\overrightarrow E $$ as a function of distance r from centre O is given by

Accepted Answer

Considering outer spherical shell is non-conducting.
Electric field inside a metal sphere is zero.
r  R $$\Rightarrow$$ E = $${{kQ} \over {{r^2}}}$$
Option (b)
Considering outer spherical shell is conducting
r < R, E = 0
R $$\le$$ r < a
E = $${{kQ} \over {{r^2}}}$$
a$$\le$$ r < b,
E = 0
r $$\ge$$ b,
E = $${{kQ} \over {{r^2}}}$$

Answer

Answer

Answer

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Electrostatics & Capacitance

A solid metal sphere of radius R having charge q is enclosed inside the concentric spherical shell of inner radius a and outer radius b as shown in the figure. The approximate variation electric field $\overrightarrow E $ as a function of distance r from centre O is given by

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