Question

S1 and S2 are two hollow concentric spheres enclosing charges Q and 2Q respectively What is the ratio of electric flux through S1 and S2? How will the electric flux through the sphere S1 change if a medium of dielectric constant 5 is introduced in the space inside S1 in place of air

Answer 1

Answer:flux ratio = 1:3

Change in flux = increase by 1/6th times

Explanation:flux = q/Eo

Flux1= Q/Eo Flux2= 3Q/Eo

Flux1/flux2 = Q/3Q = 1/3

Flux1: flux2 = 1:3

V=Ed = qd/ AEo = flux * d /A

Flux = AV/d

Flux is inversely proportional to d

Therefore if d increases by 6, flux increases by 1/6 times.