- #1
Schaus
- 118
- 5
Homework Statement
What velocity does an electron need to have in order to travel straight through the crossed E and B fields, given that E = 1.0 x 105 N/C and B = 0.40 T?
Answer: 2.5 x 105 m/s
Homework Equations
E=F/Q
F=BIl
F=QvB[/B]
The Attempt at a Solution
1.0 x 105N/C / 1.6 x 10-19 = 6.25 x 1023N. I rearranged F=QvB - v=F/QB
v = 6.25 x 1023N/ (1.6 x 10-19)(0.40T). I'm left with 9.765 x 1042 but I know this isn't my velocity but I'm confused on where to go or what I did wrong.
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