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NEETPhysicsAlternating Current

What is the fraction of ohmic losses to power transmitted when 1 MW power is to be delivered from a power station to a town 10 km away, using a pair of Cu wires of radius 0.5 cm, with a step-up transformer boosting the voltage to 11000 V, and then a step-down transformer bringing the voltage to 220 V?

Options

  1. A1.5%
  2. B2.2%
  3. C3.3%
  4. D4.7%

Correct answer

C. 3.3%

Step-by-step solution

Correct Option is : (C) 3.3%

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