Question

a cube of side 5cm has a charge of 6c. the surface density of the charge is?​

Answer 1

Surface charge density is equal to total charge on surface divided by the surface area.

surface area of cubeis 6a2. a= 5 cm =0.05 m .

area= 6 ×0.05^2=0.015m^2

surface charge density= charge/area

                                 =6 ×10^-6/0.015

                                 =4 × 10-4 coulomb/m2.

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