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Why high voltage lines (overhead ) are called high tension
lines?
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Answer Posted / halfb1t
Voltage is potential energy. It is sometimes referred to as
potential. The tension on a stretched or compressed spring
or on a bent or straightened leaf spring is also potential
energy. Charging a capacitor to put a voltage on it means
doing work on it, just as lifting a rock means doing work on
the rock. The weight of the rock that you feel with your
arm is tension, potential energy, like voltage. Just as you
can feel the weight of the rock as a force, you can see
voltage as a force that drives charges; and of course you
can see the tension on the wound spring of a wristwatch as a
force that drives the works.
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