Exercise 22.21-Enhanced- with Solution Part A Constants The electric field at a

Question

Exercise 22.21-Enhanced- with Solution Part A Constants The electric field at a distance of 0.156 m from the Assuming the sphere's charge is uniformly distributed, what is the charge density inside it? surface of a solid insulating sphere with radius 0.359 m is 1730 N/C You may want to review (Pages 738-742) For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Eield of a uniformly charged sphere. C/m Submit RequestAnswer -Part B Calculate the electric field inside the sphere at a distance of 0.215 m from the center N/C Submit RequestAnswer

Explanation / Answer

a) given that

E_outside = k*q/r^2 = (9*10^9*q)/(0.359+0.156)^2 = 1730 N/C

q = 5.1*10^-8 C

charge density is rho = q/((4/3)*pi*r^3) = 5.1*10^-8/((4/3)*3.142*0.359^3) = 2.63*10^-7 C/m^3

b) E_inside = k*q*r/R^3

E_inside = (9*10^9*5.1*10^-8*0.215)/(0.359^3) = 2132.88 N/C

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