EM Induction and EM Waves
(Powerpoint of tonight’s lecture: here)
…and what we are probably going to cover tomorrow.
F = 9VB SinΘ
The sliding conductor rod on the diagram below is 15.0 cm long and moves with a speed of 20m/s to the left. Total resistance of the circuit is 5Ω and the magnetic field is 0.5T. Find the magnitude and direction of the induced current in the rod.
E = VBL = (20) (0.5) (0.15) = 1.5V
R = 5Ω
I = E/R = 0.3A
F = IlB = (Bvl/R) (l) B = (B^2 v l^2)/R
P = I^2 R
P = V I = R I^2
A coil of 200 turns is wrapped on an 18.0 cm by 18.0 cm frame. The total resistance of the coil is 2.00Ω. A magnetic feild that is perpendicular to the plane of the coil is charge from 0.500T to 0T in 0.800s. Find the magnitude of the induced emf.
I am not getting much from this lecture….