How an electromagnetic force and field is generated all over the Universe?

All Types of fields are due to field particles and the range of these fields depend on the mass of the field particle.

Electromagnetic forces are due to Photons which are massless therefore infinite range..

Gravitational forces are due to Gravitons again massless particles therfore infinite range..

Mass do not produce EM field only charges or ions produce them..

Mass can produce gravitational field till infinite billion light years..

If gravitational fields are attributed to masses of MATTER by observation without any exact proof, then electromagnetic field can be attributed to charges in ENERGY , possibly due to random distribution over space and time.

One way of thinking about it, and this is just a bit of fun, is to imagine a single photon of light. It is moving at the speed of light. According to relativity, from the point of view of the photon, the universe contracts in length. In fact, at the speed of light, the universe has no dimension whatsoever. A photon sees the universe as a single point. The photon also sees the universe as static, since time dilation will occur. So, from a photon's perspective, it is everywhere simultaneously.

Since electromagnetism is caused by the exchange of photons, then that single photon fills the entire universe! :)

Well, masses don't produce EM fields, charges do. But yes, EM fields do have infinite range, although they fall off with the inverse square of the distance like gravity.

No, on no account. Edit: You mean, like: why is an automobile distinctive form a strawberry? they are actually distinctive interactions, and writing a course in particle physics is somewhat a lot for a "Yahoo solutions" question. And in physics we don't do okay with perfect "why" questions.

not sure, but will ask God when I get to Heaven, if I remember