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

JEE Main & Advanced Physics Electro Magnetic Induction Question Bank Static EMI

  • question_answer
    The mutual inductance of an induction coil is \[5H\]. In the primary coil, the current reduces from \[5A\] to zero in \[{{10}^{-3}}s\]. What is the induced emf in the secondary coil   [RPET 1996]

    A)            \[2500V\]                              

    B)            25000V

    C)            2510V                                      

    D)            Zero

    Correct Answer: B

    Solution :

               \[e=-M\frac{di}{dt}=-5\times \frac{\left( -5 \right)}{{{10}^{-3}}}=25000\ V\]


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