The work required to lift must be coming from the current source which is causing the current to blow through electromagnet.
NEET UG 2018 — Physics Electromagnetism
A thin diamagnetic rod is placed vertically between the poles of an electromagnet. When the current in the electromagnet is switched on, then the diamagnetic rod is pushed up, out of the horizontal magnetic field. Hence, the rod gains gravitational potential energy. The work required to do this comes from
Held on 30 Apr 2018 · Verified 9 Jul 2026.
The lattice structure of the material of the rod
The magnetic field
The current source
The induced electric field due to the changing magnetic field
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