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krypton

  • 2 years ago

A generator is constructed by rotating a coil of N turns in a magnetic field B at a frequency f. The internal resistance of the coil is R and the cross sectional area of the coil is A. Choose the correct response for each of the following statements. True or False The average induced EMF doubles if the area A is doubled. The average induced EMF doubles if the resistance R is doubled. The average induced EMF doubles if the frequency f is doubled. The average induced EMF doubles if the magnetic field B is doubled. The maximum induced EMF occurs when the coil is rotated about the axis of t

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  1. shamim
    • 2 years ago
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    1 is true

  2. krypton
    • 2 years ago
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    ok,go on

  3. shamim
    • 2 years ago
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    3 is true

  4. shamim
    • 2 years ago
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    4 is true

  5. shamim
    • 2 years ago
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    axis of t means

  6. shamim
    • 2 years ago
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    5 is not clear to me

  7. shamim
    • 2 years ago
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    but 5 may b true

  8. shamim
    • 2 years ago
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    i guessed

  9. krypton
    • 2 years ago
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    The maximum induced EMF occurs when the coil is rotated about the axis of the coil.

  10. shamim
    • 2 years ago
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    ya 5 is true

  11. krypton
    • 2 years ago
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    thats 5

  12. shamim
    • 2 years ago
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    now i wanna talk abt question 2

  13. krypton
    • 2 years ago
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    what about this The maximum induced EMF occurs when the coil is rotated about an axis parallel to the magnetic field lines.

  14. shamim
    • 2 years ago
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    ya its right

  15. shamim
    • 2 years ago
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    i know the curent creats for the rate of change of magnetic field. if the rate of change of magnetic field is higher then induced current will b higher

  16. shamim
    • 2 years ago
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    coil shoul cover magnetic field lines to create induced current

  17. shamim
    • 2 years ago
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    i think if the coil rotate along its axis then those magnetic field lines will go through the coil

  18. shamim
    • 2 years ago
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    and the rate of change of magnetic field will b higher

  19. shamim
    • 2 years ago
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    m i right

  20. shamim
    • 2 years ago
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    anyway i think ur question 2 is false

  21. shamim
    • 2 years ago
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    induced EMF does not depend on the resitance

  22. shamim
    • 2 years ago
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    of coil

  23. krypton
    • 2 years ago
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    i dont know much about this topic,i tried false and it didnt work,which means some other answer might be wrong

  24. shamim
    • 2 years ago
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    r u telling abt ur answer 2

  25. krypton
    • 2 years ago
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    yes

  26. shamim
    • 2 years ago
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    so u r telling ur answer 2 is right

  27. shamim
    • 2 years ago
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    then i wanna try it later

  28. krypton
    • 2 years ago
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    i havent tried true

  29. shamim
    • 2 years ago
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    i c

  30. krypton
    • 2 years ago
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    so u saying all of them is true,except 2?

  31. shamim
    • 2 years ago
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    ya

  32. krypton
    • 2 years ago
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    IS SAYING WRONG ANSWER

  33. shamim
    • 2 years ago
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    do u hv right answer

  34. krypton
    • 2 years ago
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    NOPE

  35. shamim
    • 2 years ago
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    ok

  36. shamim
    • 2 years ago
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    ur answer 3 and 2 are false

  37. shamim
    • 2 years ago
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    try it now

  38. krypton
    • 2 years ago
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    is still wrong

  39. shamim
    • 2 years ago
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    ha ha ha

  40. shamim
    • 2 years ago
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    sorry

  41. krypton
    • 2 years ago
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    no problem

  42. shamim
    • 2 years ago
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    then try 2,3,5 false

  43. krypton
    • 2 years ago
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    haha wrong :(

  44. shamim
    • 2 years ago
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    ha ha ha

  45. shamim
    • 2 years ago
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    so sory

  46. shamim
    • 2 years ago
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    if u know the right answer , let me know plz

  47. shamim
    • 2 years ago
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    and i wanna try it later

  48. krypton
    • 2 years ago
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    ok sure

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