Electric Fields and Force Physics (2212) Modern Review
Transcript of Electric Fields and Force Physics (2212) Modern Review
Physics (2212) Modern Review Electric Fields and Force
VPython
Polarization
Electric Potential
Magnetic Fields and Forces
Circuits
Hall Effect
Gauss’s Law
Ampere’s Law
Magnetic Flux/Induced Current
Electromagnetic Radiation A proton is accelerated in the direction shown. At observation points P and S, what are the directions of a ⊥ , v radiation ? Find the magnitude and direction of the radiative electric and magnetic fields at point P.
Electric Force and Fields
VPython
r=r_obs-proton.pos rhat=r/mag(r) Efield=oofpex*qe*rhat/(mag(r)**2) Bfield=mzofp*qe*cross(velocity,rhat)/(mag(r)**2)
Polarization
Electric Potential
Magnetic Fields and Forces
Circuits
a. Loop 1: 2Emf - ΔV Bulb -ΔV Capacitor1 =0
Loop 2: 2Emf - ΔV Bulb -ΔV Capacitor1 =0 Loop 3: ΔV Capacitor1 -ΔV Capacitor2 =0
b. I 1 =I 2 +I 3
I 4 =I 2 +I 3
c. I = 2Emf/R
Hall Effect
a) -x b) Negative c) +x d) +y e) 2.95 e-3 A
Gauss’s Law
Ampere’s Law
a) 0 b) 0 c) 𝜇 0 NI/2πr d) 0
Magnetic Flux/Induced Current
a) +z b) +z c) +z d) -y e) +y
f) 8.639e-7 A Electromagnetic Radiation