An electron is accelerated from rest through a p.d. of 2000 V. The kinetic energy it gains is:

  1. 6.4 10^-16 J
  2. 3.2 10^-17 J
  3. 3.2 10^-15 J
  4. 3.2 10^-16 J
Answer

D) 3.2 10^-16 J

KE = eV = 1.6 10^-19 2000 = 3.2 10^-16 J (= 2000 eV). SLO P-11-E-04 · Understanding

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