Alarge insulating sheet has a surface charge density σ. what is the electric field strength near the insulating sheet?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up

Which of the following statements correctly describes a transformer?