physics 2 formular exam 3

center of loop

B = (μ₀I) / (2R)

solenoid

B = μonI

emf

-nΔI/ΔT

Force per unit length of wire (f/e)

μoI1I2/2πr

velocity selector

e/b

electron has that much spin

h/2

magnetic force

qvb

charged particle to move in a circular path of radius

mv/qb

oscillator of frequency f

e=hf

energy density

u= (1/2) ε₀ E² + ½ 1/μ₀ B²

units of omega

s^-1

angular frequency

sqrt k/m

inductor

½ LI²

cap

½ 1/c Q² (t)

centripetal force

mv²/r