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

A long solenoid has 100 turns/cm and carries a current i. An electron moves within the solenoid in a circle of radius 0.022 cm perpendicular to the axis of the solenoid. The speed of the electron is 0.048c (c is the speed of light).

2. Relevant equations

f = m*v^2/r = q*v*B

B of a solenoid = u*n*I

where n = number of turns per meter

u = 4*pi*10^7

3. The attempt at a solution

so B = mv/(r*q) = u*n*I

I = mv/(r*q*u*n)

I = 5436.9 is not correct

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# Homework Help: Electron in solenoid

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