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Master electromagnetic induction: Magnetic flux derivations, mutual inductance of solenoids, and eddy currents applications in NEB Physics.
Electromagnetic induction links mechanics and electricity through the concept of magnetic flux rate of change ($\varepsilon = -\frac{d\Phi_B}{dt}$).
Examiners frequently ask how Lenz's law obeys the law of conservation of energy. Explain that mechanical work done against opposing induced magnetic poles transforms into electrical energy; without opposition, energy would be created from nothing.
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