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Answer to Question #55894 in Electricity and Magnetism for kola
Question #55894
The electron beam in a television tube consists of electrons accelerated from rest through a potential difference of about 20 000V. What is the speed of the electrons? (Ignore relativistic effects). Electron rest mass is
9.11×10−31
kg and electronic charge is
1.6×10−19
C.
8.4×107
m/s
3.8×106
m/s
6×106
m/s
4.7×107
m/s
9.11×10−31
kg and electronic charge is
1.6×10−19
C.
8.4×107
m/s
3.8×106
m/s
6×106
m/s
4.7×107
m/s
Expert's answer
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