michael7388 michael7388 20-02-2024 Physics contestada The electric field strength is proportional to $1/r$, $1/r²$, $1/r³$, $1/r⁴$, where $r$ is the distance from the midpoint.a) $1/r$b) $1/r²$c) $1/r³$d) $1/r⁴$