For a thick rod with radius r that is uniformly charged, how does the electric field inside the rod compare to that outside it?
A) Inside the rod, the electric field increases linearly with distance from the center, while outside the rod, it decreases with the square of the distance from the center.
B) Inside the rod, the electric field is constant throughout, and outside the rod, it increases linearly with distance from the center.
C) Inside the rod, the electric field decreases with distance from the center, and outside the rod, it is uniform across all distances.
D) Inside the rod, the electric field is zero, and outside the rod, it follows the inverse cube law.