Usually the force of gravity on electrons is
neglected. To see why, we can compare the
force of the Earth’s gravity on an electron
with the force exerted on the electron by an
electric field of magnitude of 10000 V/m (a
relatively small field).
What is the force exerted on the electron by
an electric field of magnitude of 10000 V/m?
The acceleration of gravity is 9.8 m/s
2
, the
mass of an electron is 9.10939 × 10−31 kg, and the elementary charge 1.602 × 10−19 C.
Answer in units of N.
part 2
What is the force of the Earth’s gravity on
the electron?
Answer in units of N.