Exercise 2

1
Exercise 2

• Perform the dimensional analysis for the electric
  force
• FqE

2
Solution

• FqE gt NC V/m
• Nkg m/s2
• CAs
• VJ/C (kg m2/s2) / (As) kg m2/ (A s3 )

3
Solution

• An electron temperature of 1 eV implies by
  definition

• 1 eV is the kinetic energy that one electron
  acquires while crossing the potential difference
  of 1 V or the potential energy that one electron
  has before moving under that potential
• The potential energy of an electron at a
  potential V0 is Ue V0 therefore the energy
  corresponding to 1 eV is 1.610-19 J
• The temperature of 1 eV then is simply
• T 1.610-19 J / (1.3810-23 J/K) 11600 K