10 POINTS! The heater is designed to work from a 3.6V supply it has a power rating of 4.5W at this voltage.
By considering the current in the heater, calculate the resistance of component X when there is the correct potential difference across the heater.

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?