1. Only a small percentage of the electric energy fed into an incandescent lamp is transformed into light. What happens to the remaining energy? 2. Another person in your discussion group says that a...

1. Only a small percentage of the electric energy fed into an incandescent lamp is transformed into light. What happens to the remaining energy?

2. Another person in your discussion group says that a battery provides not a source of electrons, but a means of moving the electrons already in the circuit. Do you agree? Defend your answer.