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MMLU-Pro / 11832 / (a )A transmission line consists of two No. 0 copper wires and is 5 miles long.…

Problem

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question

(a )A transmission line consists of two No. 0 copper wires and is 5 miles long. How much power is wasted in the line when 75 amperes are flowing? (b) How many calories of heat per hour are developed in an electric heater which takes 7.5 amperes at 110 volts pressure?

category

engineering

options

  1. 29.7 kilowatts; 712,800 calories
  2. 26 kilowatts; 695,000 calories
  3. 31 kilowatts; 720,000 calories
  4. 28.5 kilowatts; 715,500 calories
  5. 30.5 kilowatts; 725,000 calories
  6. 32 kilowatts; 730,000 calories
  7. 30 kilowatts; 715,000 calories
  8. 27.5 kilowatts; 705,000 calories
  9. 29 kilowatts; 700,000 calories
  10. 28 kilowatts; 710,000 calories

src

stemez-ElectricalMachines

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