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Manipal Medical Manipal Medical Solved Paper-2002

  • question_answer
    The primary of a stepdown. Transformer used for ringing door bell has 2000 turns of fine wire and the secondary has 100 turns. The transformer when connected to 110 V AC source will deliver at its secondary at a potential difference of:

    A)  5.5V               

    B)  11V

    C)  55V            

    D)  220V

    Correct Answer: A

    Solution :

     Here: Number of primary turns \[{{N}_{p}}=2000\] Number of secondary turns\[{{N}_{s}}=100\] Source voltage \[{{V}_{S}}=110\,V\] \[{{V}_{S}}=\frac{{{N}_{S}}}{{{N}_{P}}}\times {{V}_{P}}=\frac{100}{2000}\times 110=5.5\,V\]


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