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Electrostatics — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsElectrostatics1 Mark
Question
The outer sphere of a spherical air capacitor is earthed. For increasing its capacitance(a) Vacuum is created between two spheres(b) Dielectric material is filled between the two spheres(c) The space between two spheres is increased(d) The earthing of the outer sphere is removed
 
 
 
 
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Answer

(b) Dielectric material is filled between the two spheres

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