(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

An electron is travelling at 5.0 × 106 m s−1 directly into the page at the point P shown in Figure 3. P is 4.0 cm from O. Again, D = 10 cm and the current i in each wire has magnitude of 1.0 A with the directions that you found in part (c). Find the magnitude and direction of the force that the electron experiences.

2. Relevant equations

F = q(E(r) + v x B(r) (The Lorentz law field equation)

E(r) = Q / 4πε r^2 (The electric field)

B(r) = μ i / 2π r (The magnetic field)

3. The attempt at a solution

I have i = 1.0A, v = 5.0E6 ms^-1, q = -1.6E-19 C. I do have an answer (but I'm not sure of two things:

(i) Should I be using the equation: F = q(E(r) + v x B(r)) ? or the more straight forward F = qvB(r)

(ii) Should I be looking at the resultant force from both conductors left and right.

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# Homework Help: Lorentz Law field equation applied in a field

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