A long, nonconducting, solid cylinder of radius 4.0 cm has a nonuniform volume charge density r that is a function of radial distance r from the cylinder axis: r = Ar^2. For A = 2.5 uC/m5, what is the magnitude of the electric field at (a) r = 3.0 cm and (b) r = 5.0 cm?
- Күн бұрын
A long nonconducting solid cylinder of radius
- Рет қаралды 2,125
Пікірлер