A solid spherical insulator has radius r = 2.5 cm, and carries a total positive charge q = 8 × 10-10 c distributed uniformly thr

Question

3 years ago

14

A solid spherical insulator has radius r = 2.5 cm, and carries a total positive charge q = 8 × 10-10 c distributed uniformly thr

oughout its volume. find the magnitude of the electric field |e| at a radius of 5 cm from the origin (i.e., outside the sphere).

Physics

1 answer:

ira [324] · Answer 1 · 2022-02-14T01:53:16+03:00

At r = 2R> R The expression for the electric field will be given by: (2R)^2*E=kQ. Where, k=(9*10^9)N.m/C^2, Q=(8*10^-10)C and R=0.025m. So substituting and clearing, we have that the magnitude of the electric field will be: E=(9*10^9)*(8*10^-10)/((2*0.025)^2)=2880 N / C.