Wirelessly charged cyclist

I think this explanation does not work. The magnetic field is just too small. If the wire carries 1,000A the field at 10m distance is 0.2Gauss. The magnetic field of Earth is in the order of 0.5Gauss. An MRI magnet has a field of 30,000 Gauss, and it is considered to be safe in terms of electric shocks (there are safety concerns about magnetic materials in the vicinity).

The electric field, however, can be as high as 10,000V/m. My best guess is that Alex was charged by the electric field and discharged when the tire hit the water.

I apologize for the use of the Russian language. Use is necessary to explain the ambiguity in English. “Right before” instead of “done correctly before.”

Я прошу прощения за использование русского языка. Использование необходимо, чтобы объяснить неоднозначность на английском языке. «Прямо перед» вместо «сделано правильно раньше».

This is an interesting observation/ problem. I am not convinced that the accepted solution is the most likely explanation or even a possible explanation for the shock experienced by the cyclist. I believe the circumstances described in this problem could easily be replicated and a definite quantifiable answer could be demonstrated.

I would like to pass on a somewhat relatable experience that I am aware of. This is also a real-life event where some of the circumstances are similar to what Alex experienced. A very high voltage power transmission line in the range of 345,000 volts cross a field where grain harvesting was being done.

Ron happens to be a qualified electrician with decades of experience working with the electrical grid was operating a combine. The combine is a large piece of equipment that is electrically insulated from ground by rubber tires and no other direct contact to the earth. Ron stopped the combine to do some minor repairs while working in the large field. Unexpectedly Ron experienced a significant continuous shock when he attempted to work on the combine while he was kneeling on the ground in front of the cutting knife. He then noticed that he had inadvertently stopped the combine between two of the towers used to support the overhead power lines. The separation between the combine and the transition line would have been several meters. There was nowhere near any direct physical contact between the lines and the combine.

Ron described the shock he experienced as concerning and very uncomfortable to work with. He immediately moved to another location to complete the repairs required on the machine. In his career he has experience numerus electrical shocks and roughly estimated the combine to be somewhat less than 120 volts to ground.

My point is that I agree with Laszio. There would be other examples that can be simulated and even measured where a shock can be experienced where there is no motion required within a high voltage electrical field.

Also, in my personal experience working with electrical equipment, skin resistance and other factors vary greatly between individuals. It is common for one individual to describe contact with a voltage source completely differently then another individual. In one case several people describe contact with an eclectically charge surface as painful, involving their entire arm including involuntary muscle contractions. I personally could not feel much of anything at all. Only when I deliberately made good contact with a grounded surface with one hand and then wet my fingers on the other hand was I able to feel a slight tingling sensation in my fingertips.