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Question
The large scale transmission of electrical energy over long distances is done with the use of transformers. The voltage output of the generator is stepped-up because of ______.
Options
reduction of current
reduction of current and voltage both
power loss is cut down
reduction of current and power loss is cut down both
Solution
The large scale transmission of electrical energy over long distances is done with the use of transformers. The voltage output of the generator is stepped-up because of reduction of current and power loss is cut down both.
Explanation:
Because the voltage is increased, the current decreases. Power loss is proportional to the square of the current. Power loss diminishes considerably as current drops.
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