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Questions  >>  CBSE XII  >>  Physics  >>  Alternating current
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A small town with a demand of 800kw of electric power at 220v is situated 15km away from an electric plant generating power at 440v. The resistance of the two line wires carrying power is 0.5Ω per km. The town gets power from the lines through a 40,000220v Step down transformation. Neglect leaked losses . hence explain why high voltage transmission is preferred .

because the power loss percentage at higher voltage is very less because the power loss percentage at higher voltage is very high voltage drop on the line is very high Voltage on the line is very low 

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