- #1
Lady MYSTERY
- 5
- 0
Let's suppose you had an electromagnet generating a magnetic field. That field would expand at the speed of light.
However, once upon a time, I was told that if this electromagnet were turned off, the field would completely instantaneously collapse, instead of collapsing at the speed of light, and thus the magnetic field would cease to expand (however weak it may be).
This seems sketchy to me. Someone please explain.
However, once upon a time, I was told that if this electromagnet were turned off, the field would completely instantaneously collapse, instead of collapsing at the speed of light, and thus the magnetic field would cease to expand (however weak it may be).
This seems sketchy to me. Someone please explain.