Can someone explain these fields by making analogy or compared to something physically visible, these fields are quite abstract to me?

 

The EM force is a singular entity as a fundamental force.

Fluid dynamics and electromagnetism are field theories so maybe that can be used as a mainly illustrative analogy.

A search gives this.
https://www.google.com/url?sa=t&sou...cQFnoECBgQBQ&usg=AOvVaw2OKZbTL7_IWAhg_bGPK8VD

 

Can someone explain these fields by making analogy or compared to something physically visible, these fields are quite abstract to me?

Perhaps that is because it is just that, abstraction. It is a useful mathematical model that allowed us to do calculations that were otherwise impossible at the time. It only works over statistically large systems of particles, whose actual behavior is described by quantum mechanics, which may itself be an abstraction.

 

One of the common analogies I have heard used for fields are weather maps.

 

One of the common analogies I have heard used for fields are weather maps.

Can you tell me more?

 

The 2 fields, electric and magnetic are perpendicular. All the electrical laws show different aspects.
Putting a cart before the dog is an analogy of ignoring prior knowledge.
Maxwells fluid analogy, mathematicians wanted something better. Thankfully some rejected the steam engine analogies.
3D Comsol simulations give relevant information that supports practical applications

 

I was a professional engineer for 40 years. I knew about E and H fields, but I never understood them well. Maxwells equations had me baffled.
However I never found a situation where I needed to apply this stuff. In order for my head not to explode, I just acknowledged that such stuff existed, and moved on to the next problem.
I'm not trying to be funny. Its just that the application of E and H fields is not in the realm of the practicing engineer.

 

I'm not trying to be funny. Its just that the application of E and H fields is not in the realm of the practicing engineer.

Depends very much on the type of engineering the engineer is practicing.

 

To make E & H more "visible" and real, let me suggest the (magnet+iron filings) experiments for H and (battery+teledeltos paper) experiments for E. A little google searching should turn up more information and a few videos for both.

 

Emil Lenz formulated Lenz law and Fleming much later taught his students the right hand rule.
Fleming would pass a copper wire through a C shaped magnet showing current direction. Lenz and angular momentum was ahead of it's time.
Those who worked with the basic experiments of an electric generator could better grasp the dynamo field concept.
Lorenz who mastered mathematics was asked to interpret all prior mathematical knowledge that had accumulated.
He reiterated by saying the Magnetic field wraps around moving current.

lec10.dvi

 

To make E & H more "visible" and real, let me suggest the (magnet+iron filings) experiments for H and…