So, a photon is created in a light bulb by charges (electrons) in thermal motion, but once it starts propogating it leaves that behind. The photon needs carry no charge in order to travel (indeed, it travels faster in a vacuum than any charged particle).
Do photons have a field?
A photon is a tiny particle that comprises waves of electromagnetic radiation. As shown by Maxwell, photons are just electric fields traveling through space. Photons have no charge, no resting mass, and travel at the speed of light.
Can electric field be negative?
Electric field is not negative. It is a vector and thus has negative and positive directions. An electron being negatively charged experiences a force against the direction of the field.
Are photons affected by electric field?
According to photon, they can not be affected by electric and magnetic fields. But EM waves are affected by external electric and magnetic fields.
Do magnetic fields have mass?
magnetic fields are produced by charged particles in motion, and depend on the charge and velocity of these particles, but not on their mass.
Why does a photon have no mass?
The answer is then definitely “no”: the photon is a massless particle. … Even before it was known that light is composed of photons, it was known that light carries momentum and will exert pressure on a surface. This is not evidence that it has mass since momentum can exist without mass.
What carries the electromagnetic force?
The force carrier for the electromagnetic force is the photon. Photons, which are commonly called light waves, and referred to as gamma rays, X-rays, visible light, radio waves, and other names depending on their energy.
How a photon is created?
A photon is produced whenever an electron in a higher-than-normal orbit falls back to its normal orbit. During the fall from high energy to normal energy, the electron emits a photon — a packet of energy — with very specific characteristics. … A sodium vapor light energizes sodium atoms to generate photons.