Physics
Improve your experience by picking them
An infinitely long nonconducting cylindrical shell with uniform charge density is coaxially enclosed by an infinitely long conducting cylinder of radius R, separated by a distance d as shown below. Determine the electric fields in regions I, II, III, and IV.
A thin film of silicon dioxide is used as an insulating layer for microelectronic devices. When the electric field perpendicular to the layer exceeds 9.1 x 109 V/m, the material will undergo dielectric breakdown. Determine the minimum surface charge density on the oxide layer to trigger this breakdown.
A sodium ion, Na+, is placed in space where the electric field is E = (-500i + 200k) N/C. Determine the electric force on the sodium ion. Express the force in terms of its components.
A thin non-conducting rectangular sheet is placed over a metal plate having similar surface dimensions and a top surface charge density of 2.3 µC/m². What must be the surface charge density at the bottom surface of the metal plate if the non-conducting sheet has - 4.6 µC/m²?