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The electricity received at an electrical substation has a potential difference of 20,000 V. What should the ratio of the turns of the step-down
transformer be to have an output of 500 V?
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Answer :

asuwafohjames

The turn ratio of the transformer is 40.

What is a transformer?

A transformer is an electrical device that is used to step up or step down voltage.

The formula for calculating the turns ratio of a transformer is given below.

Formula

  • a = V/v.......... Equation 1

Where:

  • V = Primary voltage
  • v = Secondary voltage
  • a = Turns ratio of the transformer

From the question,

Given:

  • V = 20000 V
  • v = 500 v

Substitute the values above into equation 1

  • a = 20000/500
  • a = 40.

Hence, The turn ratio of the transformer is 40.

Learn more about transformers here: https://brainly.com/question/6450076

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