According to bill, one of the biggest ideas of science is what?

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

What properties of a moving object are used in determining the object's energy of motion

Where do magnetic lines of force enter earth?