Question

If Earth is supposed to be metallic sphere what will be its capacity​

Answer 1

The radius of the earth = 6378.1 km

If it is a sphere, we can approximate it's capacity using the formula for finding the volume (capacity) of a sphere

V = 4/3 πR³

V = Volume

R = Radius




∴ V = 4/3 x 3.14 x (6378.1)³

      = 1.86 x 10^12 Km³

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Answer 2

Hey mate here is your answer ★★★★:—

   Taking earth to be a metallic spheres, its capacity will    
     approximately be

           (A) 6.4 × 10f                        (B) 700 PF

                                        (C) 711μF                                             (D) 700 pF

 

Solution:                 Answer:        (C) 711μF

                    for a sphere, c = 4π∈­0R

                                        c = [1 / (9 × 109)] × 6400 × 103

                    as [1 / (4∈0)] = 9 ×109 & R = Radius of earth = 6400 km

                              ∴ c = 7.11 × 10–4 F

                                 c = 711 × 10–6 F

                                 c = 711μF    

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