2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Electro Magnetic Induction

JEE Main & Advanced Physics Electro Magnetic Induction Question Bank Application of EMI (Motor, Dynamo, Transformer)

  • question_answer
    The number of turns in primary and secondary coils of a transformer are 100 and 20 respectively. If an alternating potential of 200 volt is applied to the primary, the induced potential in secondary will be                                              [RPET 1999]

    A)            10 V                                         

    B)            40 V

    C)            1000 V                                     

    D)            20,000 V

    Correct Answer: B

    Solution :

               \[\frac{{{E}_{p}}}{{{E}_{s}}}=\frac{{{N}_{p}}}{{{N}_{s}}}\Rightarrow \frac{200}{{{E}_{s}}}=\frac{100}{20}\Rightarrow {{E}_{s}}=40\ V\]


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