Electrical systems are governed by ohm’s law, which states that v = ir, where v is the voltage, i is the current, and r is the resistance. if the current in an electrical system is decreasing at a rate of 8 amps per second while the voltage remains constant at 24 volts, at what rate is the resistance increasing (in ohms per second) when the current is 56 amps?

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

Convection currents are caused by differences in what two things?