Tension
It
is the potential difference generated between the ends of a component or
electrical device. We can also say that energy is able to set in motion the
free electrons in a conductor or semiconductor. The unit of this parameter is
the volt (V). There are two types of stress: the continuous and alternating.
- DC voltage (VDC) It's one that has a definite polarity as that provided by batteries and power supplies.
- AC voltage (VAC) It's one whose polarity is changing or alternating over time. The most common sources are alternating voltage generators and domestic energy networks.
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