Accelerating Current: Does Bending a Wire Produce EM Radiation?

[SandeshPhy]

Current is simply flow of charge,
and acceleration of charged particles produces EM radiation.
Then if we bend a wire,charges(current) would be accelerated as they change direction,then a bent wire must radiate.Is it true?

 

[Bill_K]

Radiation is produced by a changing current, or a changing charge distribution. A steady current does not produce radiation, even in a circular wire.

 

[technician]

When charged particles, electrons, protons etc, are traveling in circular paths in accelerators they produce radiation sometimes know as synchrotron radiation.
Some synchrotrons are used as sources of X-rays.

 

[SandeshPhy]

When charged particles, electrons, protons etc, are traveling in circular paths in accelerators they produce radiation sometimes know as synchrotron radiation.
Some synchrotrons are used as sources of X-rays.

But then even steady current moving in curved path is same as electrons moving in synchrotons.the electrons do radiate so why doesn't the current(which is simply flow of electrons)?

I am totally confused here?

 

[king vitamin]

A steady current in a circular wire has a constant charge density throughout. Maxwell's equations gives zero/constant electric field (if the wire is approx. zero charge or charged) and constant magnetic field - no radiation. An electron in a cyclotron does NOT have a constant charge density so the electric field is time dependent. For that matter the magnetic field would be more complicated too!

The way I understood the first post I imagined bending a wire as charge was flowing through it - in this case there would be radiation of course, since the magnetic field would change.