A supply of 200 V can be obtained from a source of 600 V by means of a two-winding transformer or an autotransformer. The ratio of weights of conductor material in the autotransformer with respect to the two-winding transformer is _____________.

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SSC JE Electrical 9 Oct 2023 Shift 3 Official Paper-I
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  1. 2 ∶ 1
  2. 1 ∶ 1.5
  3. 1.5 ∶ 1
  4. 1 ∶ 2

Answer (Detailed Solution Below)

Option 2 : 1 ∶ 1.5
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Detailed Solution

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The correct answer is option no "2".

Concept:-

The ratio of the weight of the conductor material in an autotransformer and two-winding transformer is given by:

Given: Source, V1 = 600 V. V2 = 200 V 

 = 1 ∶ 1.5

Additional Information Conversion from the two-winding transformer to the autotransformer

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