A young river can be explain why it still having eroding blank

An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?

Abearing is designed to a reduce friction b. support a load c. guide moving parts such as wheels, shafts and pivots d. all of the above

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v