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JAMB Physics 2002 Question 44

Question 44

Electromagnetic Induction

From the generating station to each substation, power is transmitted at a very high voltage so as to reduce

  1. A.eddy current loss
  2. B.hysteresis loss
  3. C.heating in the coils
  4. D.magnetic flux leakage.
Show the answer and explanation

Answer: C (heating in the coils)

Explanation

At high voltage the current is small, so the I2R heating loss in the conductors is small.