Aparallel plate capacitor is connected to a battery that has a potential difference of 200 v. once charged, each plate on the capacitor holds a charge of 5.0 × 10-9c. what is the capacitance of the parallel plate capacitor? a. 2.0 × 10-6 f b. 2.5 × 10-11 f c. 5.0 × 10-11 f d. 1.0 × 10-6 f

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?