Author Question: The main difference between an incandescent bulb and a fluorescent bulb is that the incandescent ... (Read 69 times)

mydiamond · **on:** Jul 29, 2018

The main difference between an incandescent bulb and a fluorescent bulb is that the incandescent bulb

A) uses electromagnetic radiation to heat a wire, while a fluorescent bulb uses magnetic fields to heat a gas.
B) sends an electric current through a gas while the fluorescent bulb heats a thin wire electrically.
C) uses electric current to heat a wire, while a fluorescent bulb sends an electric current through a gas.
D) heats a wire by sending an electric current through it, while the fluorescent heats a solid powdery material by sending a current through it.
E) heats a wire by sending an electric current through it, while a fluorescent bulb uses magnetic fields to heat a gas.

Question 2

The law of gravity was invented by

A) Copernicus. B) Ptolemy. C) Galileo. D) Kepler. E) Newton.