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Part A
Suppose 81 kW is to be transmitted over two 0.110 lines.
Estimate how much power is saved if the voltage is stepped up from 220 V to 2200 V and then down again, rather than simply transmitting at 220 V. Assume the
transformers are each 99% efficient.
Express your answer using two significant figures.
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Transcribed Image Text:Part A Suppose 81 kW is to be transmitted over two 0.110 lines. Estimate how much power is saved if the voltage is stepped up from 220 V to 2200 V and then down again, rather than simply transmitting at 220 V. Assume the transformers are each 99% efficient. Express your answer using two significant figures. ΕΠΙ ΑΣΦ Psaved 140.55 Submit Previous Answers Request Answer × Incorrect; Try Again; 4 attempts remaining ? kW
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