Physics-
General
Easy

Question

198.The transformation ratio in the step-up transformer is

  1. One  
  2. Greater than one  
  3. Less than one  
  4. The ratio greater or less than one depends on the other factors  

The correct answer is: Greater than one


    Transformation ratio,blank k equals fraction numerator N subscript s end subscript over denominator N subscript p end subscript end fraction equals fraction numerator V subscript s end subscript over denominator V subscript p end subscript end fraction
    For step-up transformer,
    N subscript s end subscript greater than N subscript p end subscript comma i e comma V subscript s end subscript greater than V subscript p end subscript comma blank h e n c e comma blank k greater than 1.

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