Decide whether the following statement applies to electric fields, magnetic fields, both kinds of fields, or neither field:
Field lines always form closed loops.
A. Neither electric nor magnetic fields
O B. Magnetic fields only
C. Both electric and magnetic fields
O D. Electric fields only

Unpolarized light passes through three polarizing filters. the first one is oriented with a horizontal transmission axis, the second filter has its transmission axis 25.7° from the horizontal, and the third one has a vertical transmission axis. what percent of the light gets through this combination of filters