The animation represents a traveling electromagnetic wave in the z-direction. Th
ID: 2097513 • Letter: T
Question
The animation represents a traveling electromagnetic wave in the z-direction. The electric and magnetic field are represented with the magnetic field not drawn to scale.
Which wave is the electric field and which one is the magnetic field? Explain in detail.
Figure here: 9.8.4
http://webphysics.davidson.edu/physletprob/ch9_problems/ch9_8_emwave/default.html
I know the red wave is the electric field and the blue wave is the magnetic field but i need an explination of why.
Explanation / Answer
so electromagnetic waves follow a right hand rule. E into B gives you the direction of v
so start your fingers in the red and move them into the blue and notice your thumb points in v so that assingment is correct