why do accelerated charges emit e/m radiation?

by sor2char
Tags: accelerated, charges, e or m, emit, radiation
sor2char is offline
Jul2-04, 10:22 AM
P: 5
Hi first time post here and the site is awesome.
Question is in the title really. Im a second year physicist at UMIST, manchester, England and worry about why an accelerated charged particle loses energy via e/m radiation. For example Bohr's model of the atom consisting of electrons physically orbitting the nucleus was proved incorrect as the elctrons would spiral towards the centre.
Phys.Org News Partner Physics news on Phys.org
Sensitive detection method may help impede illicit nuclear trafficking
CERN: World-record current in a superconductor
Beam on target: CEBAF accelerator achieves 12 GeV commissioning milestone
DarkEternal is offline
Jul2-04, 10:58 AM
P: 54
the purcell text i used this year had a very good explanation based in relativity, somewhat replicated at this site: www.chem.yale.edu/~cas/jenkins.html

basically, electromagnetic disturbances propagate at the speed of light. so the information that the charge (and the field from the charge) has acclerated reaches a certain point away from the charge at a later time, indicated by the picture to the right. this creates a sort of wavefront.

Register to reply

Related Discussions
Why do accelerated charges emits a photon? Classical Physics 32
Radiation by an accelerated electron? General Physics 3
Accelerated charges radiate energy Introductory Physics Homework 1
Accelerated charges loose energy Special & General Relativity 2
Do hydrogen atoms continuously emit radiation? Quantum Physics 22