Examlex
If you hold a pencil at arm's length and slowly move it closer to your face,the ciliary muscles change the thickness of the lens of the eye to permit variable focusing on the pencil.This process is known as convergence.
Armature
The rotating part of an electric generator or motor that interacts with the magnetic field to produce or use electricity.
Series
A connection of electrical components in a circuit end-to-end such that there is only one path for current flow, leading to the same current through all components.
Two-phase Power System
A two-phase power system is an electrical power distribution method that uses two alternating currents, which are offset in phase by one-quarter of a cycle (90 degrees).
Phase
A measure of the position of a point in time on a waveform cycle, often used in the context of alternating currents to describe the difference in timing between two waveforms.
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