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प्रश्न
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 ______.
विकल्प
reduction of current
reduction of current and voltage both
power loss is cut down
reduction of current and power loss is cut down both
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उत्तर
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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