1. The problem statement, all variables and given/known data A singly charged positive ion with a mass of 6.68 x 10^-27 kg moves clockwise with a speed of 1.10 x 10^4 m/s in a circular path with a radius of 2.00 cm. Find the direction and strength of the magnetic field. (Hint: The magnetic force exerted on the ion is the force that maintains circular motion, and the speed of the ion given is its tangential speed.) _____ T 2. Relevant equations F = ma and since the particle travels in a circle, F = mv² / r which is the magnitude of the magnetic field. 3. The attempt at a solution F = 6.68•10^-27 kg•(1.10•10^4 m/s)² / 0.2m but the answer is wrong. why?