Charges Q, 2Q and 4Q are uniformly distributed in three dielectric solid spheres 1, 2 and 3 of radii R/2, R and 2R respectively, as shown in the figure. If magnitudes of the electric fields at point P at a distance R from the centre of spheres 1, 2 and 3 are ${E}_{1}, {E}_{2}$ and ${E}_{3}$ respectively, then

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Charges Q, 2Q and 4Q are uniformly distributed in three dielectric solid spheres 1, 2 and 3 of radii R/2, R and 2R respectively, as shown in the figure. If magnitudes of the electric fields at point P at a distance R from the centre of spheres 1, 2 and 3 are ${E}_{1}, {E}_{2}$ and ${E}_{3}$ respectively, then

Charges Q, 2Q and 4Q are uniformly distributed in three dielectric solid spheres 1, 2 and 3 of radii R/2, R and 2R

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Correct answer: C. E _ 2 > E _ 1 > E _ 3

For point outside dielectric sphere E = Q 4π ε _ 0 r ^ 2 For point inside dielectric sphere E = E _ s (r)/(R) Exact Ratio E _ 1 : E _ 2 : E _ 3 = 2: 4: 1

Charges Q, 2Q and 4Q are uniformly distributed in three dielectric...

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