A straight wire carrying a current of 7.2 A has a field of 8.9 10–3 T at right angles to it. What length of wire in the field wi
2 answers:
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Answer: v =
Explanation: q = magnitude of electronic charge =
mass of an electronic charge =
V= potential difference = 4V
v = velocity of electron
by using the work- energy theorem which states that the kinetic energy of the the electron must equal the work done use in accelerating the electron.
kinetic energy = , potential energy = qV
hence,