An electron is accelerated by a potential difference of 20 V. The change in the electron's kinetic energy is
A) 0.810 *10-19 J.
B) 1.62 *10-19 J.
C) 3.24 * 10-19 J.
D) 4.86 * 10-19 J.
E) None of the above is correct.
Correct Answer:
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