1) An airplane is flying through a thundercloud at a height of
2000 m. (This is very dangerous because of updrafts, turbulence,
and the possibility of electric discharge.) If there are charge
concentrations of 45 C at height 3300 m within the cloud and −41 C
at height 948 m, what is the strength of the electric field E at
the aircraft? The Coulomb constant is 8.99 × 109 N·m2 /C 2 . Answer
in units of V/m.
2) Find...