A stationary bar magnet is arranged with its North Pole facing downward, a ring conductor is falling into the magnet. Comment on the change in flux, the direction of the induced B and the direction of the induced current

Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells? burning fossil fuels contributes to climate change. burning fossil fuels takes place inside expensive fuel cells. fossil fuels aren't widely available, but pure hydrogen is. fossil fuels are nonrenewable.

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates