- #1
ur5pointos2sl
- 96
- 0
The problem states:
From the field with a radial cylindrical component only given by the following equations:
E(r)= (ρ0*r3)/(4 * ε0*a2) for r<=a
E(r)= (ρ0*a2)/(4*ε0*r2) for r > a
obtain the corresponding charge distribution in free space in which the equation is:
ρ(r) = ρ0*(r2/a2) (0<=r<=a)
So I know that dE(r)/dr = p(r)/ε0
After differentiating the first E(r) equation I come to (3/4)*ρ0*r2/a2.
It would be correct if the 3/4 weren't there but I'm not sure where I'm going wrong. Any help appreciated.
From the field with a radial cylindrical component only given by the following equations:
E(r)= (ρ0*r3)/(4 * ε0*a2) for r<=a
E(r)= (ρ0*a2)/(4*ε0*r2) for r > a
obtain the corresponding charge distribution in free space in which the equation is:
ρ(r) = ρ0*(r2/a2) (0<=r<=a)
So I know that dE(r)/dr = p(r)/ε0
After differentiating the first E(r) equation I come to (3/4)*ρ0*r2/a2.
It would be correct if the 3/4 weren't there but I'm not sure where I'm going wrong. Any help appreciated.
Last edited: