Eliminate Lenz's current

[allcanadian]

@Vineet Kiran
That's an interesting concept which is fairly well known because the same process is used in EMP weapons however with EMP devices the compression is performed by high explosives.
If we have a constant current source such as a battery connected to a coil then this coil will have a uniform magnetic field which surrounds each conductor. This magnetic field follows the inverse square law and gets progressively stronger the closer we get to the conductor. Now whenever we have a changing magnetic field and this change in the field influences a conductor we call this self-inductance and this produces a potential difference in the conductor. As such when your spring is compressed the magnetic field must change and this change must induce a voltage in the conductor thus a current because the circuit is closed.
This is how an EMP device works, a capacitor produces an initial high current in a coil and then high explosives "move" the coil very fast and the self-induction produces a massive current in the coil of millions of amperes. As the coil is blown apart it gets progressively smaller and the smaller the coil gets the more current is generated because the magnetic field around the conductor gets stronger the closer we get to the conductor following the inverse square law.

It is interesting to note that Ampere stated --- the magnetic field should be considered as distinct from the source which produced it however any change in force on the field must always translate back to the source.
Regards
AC

[vineet_kiran]

Thanks for the information

Regards
Vineet.K.