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At time t = 0  magnetic field of 1000 Gauss is passing perpendicularly through the area defined by the closed loop shown in the figure. If the magnetic field reduces linearly to 500 Gauss, in the next 5 s  , then induced EMF in the loops is:

 

Option 1 -

28 μ V

Option 2 -

56 μ V

Option 3 -

48 μ V

Option 4 -

36 μ V

0 3 Views | Posted 2 months ago
Asked by Shiksha User

  • 1 Answer

  • R

    Answered by

    Raj Pandey | Contributor-Level 9

    2 months ago
    Correct Option - 2


    Detailed Solution:

    ε = - d φ d t = - A d B d t

    = ( 16 × 4 - 4 × 2 ) ( 1000 - 500 ) 5 × 10 - 4 × 10 - 4

    = 56 × 500 5 × 10 - 8 = 56 × 10 - 6 V

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