1. The problem statement, all variables and given/known data Electrons move in a wire in the direction shown through an electrical device at the rate of 5*10^19 electrons per s. If the two ends of the device are at different electric potentials, V(a)-V(b)=-3 Volts, and if the electrons emerge at the same speed with which they entered, then the rate at which work is being done on the device is? https://elearn.wmich.edu/webct/urw/lc571145591061.tp572778900061/RelativeResourceManager?contentID=572779805061 [Broken] 2. Relevant equations ? 3. The attempt at a solution I'm just not sure what the equation for work would be here, even though I probably already know it and can't remember but I didn't see it in my physics book either.