(a) In what direction are the electrons deflected by this field component? due n
ID: 2142849 • Letter: #
Question
(a) In what direction are the electrons deflected by this field component?
due north
What is the acceleration of an electron in part (a)?
The electrons in the beam of a television tube have a kinetic energy of 2.40 times 10-15 J. Initially, the electrons move horizontally from west to east. The vertical component of the earth's magnetic field points down, toward the surface of the earth, and has a magnitude of 3.00 times 10-5 T. In what direction are the electrons deflected by this field component? due westdue east due south due north What is the acceleration of an electron in part (a)?Explanation / Answer
1.north electron has negative charge !!!
2.ma = F = evB ;a = evB / m
K - kinetic energy ; K = mv ^ 2/ 2 ; v = (2K /m) ^1/2
a = eB(2K /m) ^1/2 / m
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