Concentric spherical shells of radii 2 m, 4 m, and 8 m carry uniform surface charge densities of 20 nC/m2, −4 nC/m2 and ρs, respectively. The value of ρs (nC/m2) required to ensure that the electric flux density D↖{→} = 0 at radius 10 m is _________

Question

Concentric spherical shells of radii 2 m, 4 m, and 8 m carry uniform surface charge densities of 20 nC/m2, −4 nC/m2 and ρs, respectively. The value of ρs (nC/m2) required to ensure that the electric flux density D↖{→} = 0 at radius 10 m is _________

Examsnet · Accepted Answer

Correct Answer is : -0.28--0.22

GATE Electronics and Communications (EC) 2016 Shift 1 Solved Paper