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Einstein's special theory of relativity implies that if a person standing at the front of a train traveling at 0.1 km/s shines a flashlight out in front of the train, the emitted photons will travel at a speed of 300,000.1 km/s.
Magnetic Polarity
Refers to the orientation of the magnetic poles in a magnet, determining the direction of the magnetic field's flow.
Electromagnet
A type of magnet where the magnetic field is produced by an electric current, typically involving a wire coil.
Volts-per-turn Principle
The volts-per-turn principle relates to the design of electromagnetic coils, stating that the induced voltage in a coil is proportional to the rate of change of magnetic flux linkage per turn of the coil.
Electro-magnetic Induction
A phenomenon where an electric current is induced in a conductor when it is exposed to a changing magnetic field.
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