2. Solved Papers
  3. MGIMS WARDHA

MGIMS WARDHA MGIMS WARDHA Solved Paper-2014

  • question_answer
    A step down transformer operated on a 2.5 kV line. It supplies a load with 20 A. The ratio of the primary winding to the secondary is\[10:1\]. If the transformer is 90% efficient, the voltage in the secondary is

    A)  225V                                    

    B)  550V

    C)  250V                                    

    D)  200V

    Correct Answer: C

    Solution :

                    Since, \[\frac{{{V}_{s}}}{{{V}_{p}}}=\frac{{{N}_{s}}}{{{N}_{p}}}\] \[\frac{{{V}_{s}}}{2500}=\frac{1}{10}\] \[{{V}_{s}}=250V\]


You need to login to perform this action.
You will be redirected in 3 sec spinner