KCET · Physics · Electrostatics
A metallic sphere of radius R carrying a charge q is kept at certain distance from another metallic sphere of radius \(\mathrm{R} / 4\) carrying a charge Q . What is the electric flux at any point inside the metallic sphere of radius R due to the sphere of radius \(\mathrm{R} / 4\) ?
- A \(\frac{Q}{\varepsilon_0}-\frac{q}{\varepsilon_0}\)
- B Zero
- C \(\frac{\mathrm{q}}{\varepsilon_0}-\frac{\mathrm{Q}}{\varepsilon_0}\)
- D \(\frac{Q}{\varepsilon_0}\)
Answer & Solution
Correct Answer
(B) Zero
Step-by-step Solution
Detailed explanation
Since spheres are electrostatically shielded from each other, \(\phi=0\).
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