The main difference between an incandescent bulb and a ...

[mydiamond]

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.

[blakcmamba]

Answer to Question 1

C

Answer to Question 2

E

[mydiamond]

Excellent

[isabelt_18]

Gracias!