Translations:Electricity and energy/20/en
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Voltage:
Left - A full water tank has a lot of pressure.
Right - An empty water tank has no pressure.
Current:
Left - A valve that is completely open allows a high volume of water to flow.
Right - A valve that is nearly shut allows a low volume of water to flow.
Resistance:
Left - The valve part way open with a small pipe creating friction and reducing volume.
Right - The valve part way open with a large pipe allowing the volume to easily pass through.
