Question

A sphere of radius 5 cm has a charge of 31.41 micro coulomb calculate the surface density of charge​

Answer 1

The surface density of charge of the sphere is 999.8 C/ m².

• The radius of sphere ( r ) = 5 cm

                                                  = 5x10⁻² m

• Thus, Area ( a ) = 314.16x10⁻⁴ m²

• Charge of sphere ( q ) = 31.41 micro Coulomb

                                             = 31.41 x 10⁻⁶ C

• Therefore, The surface density of charge = q / a

                                                      = 31.41 x 10⁻⁶ C/ 314.16x10⁻⁴ m²

                                                      = 999.8 C/ m²

Answer 2

Answer:

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