Why does a moving (at constant velocity) magnet release more energy in the form of magnetic fields when the number of charges placed near it are increased?
Say two current carrying coils $C1$ and $C2$ are in a system in which $C1$ is moving at constant velocity. The magnet fields from $C1$ will reach $C2$ after an interval of time. So at the moment $C1$ releases energy (M.F) it doesn't know about charges surrounding and it can't make predictions of how much energy is to be released at the instant. So it can only give out a fixed amount of energy in M.F. Let's say it is equal to $M'$. When we add another coil say $C3$ in system, the amount of energy released by C1 is still $M'$. Therefore the total output can't exceed $M'$. This statement says that you can't get more wireless energy by constant velocity gaining magnet in output even if you use many sets of coils. But I think that it is false and we can get larger amount of energy as output by using extra coils. C2, C3, ... Cn
Explain what is right