1. The problem statement, all variables and given/known data An electron with kinetic energy 1.60 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 24.0 cm. a Find the speed of the electron. b Find the Magnetic Field 2. Relevant equations k=1/(2mv^2) B=mvqr 3. The attempt at a solution I first converted keV to Joules which came out to be 2.5635 e-16 J I then made the equation to solve for v : v=sqrt(1/2mk) But I came out with the velocity being e22 4.627 km/s which is not right PLease help!!!!