## 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

• This Question is Open
1. shamim

1 is true

2. krypton

ok,go on

3. shamim

3 is true

4. shamim

4 is true

5. shamim

axis of t means

6. shamim

5 is not clear to me

7. shamim

but 5 may b true

8. shamim

i guessed

9. krypton

The maximum induced EMF occurs when the coil is rotated about the axis of the coil.

10. shamim

ya 5 is true

11. krypton

thats 5

12. shamim

now i wanna talk abt question 2

13. krypton

14. shamim

ya its right

15. shamim

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

coil shoul cover magnetic field lines to create induced current

17. shamim

i think if the coil rotate along its axis then those magnetic field lines will go through the coil

18. shamim

and the rate of change of magnetic field will b higher

19. shamim

m i right

20. shamim

anyway i think ur question 2 is false

21. shamim

induced EMF does not depend on the resitance

22. shamim

of coil

23. krypton

24. shamim

r u telling abt ur answer 2

25. krypton

yes

26. shamim

so u r telling ur answer 2 is right

27. shamim

then i wanna try it later

28. krypton

i havent tried true

29. shamim

i c

30. krypton

so u saying all of them is true,except 2?

31. shamim

ya

32. krypton

33. shamim

34. krypton

NOPE

35. shamim

ok

36. shamim

ur answer 3 and 2 are false

37. shamim

try it now

38. krypton

is still wrong

39. shamim

ha ha ha

40. shamim

sorry

41. krypton

no problem

42. shamim

then try 2,3,5 false

43. krypton

haha wrong :(

44. shamim

ha ha ha

45. shamim

so sory

46. shamim

if u know the right answer , let me know plz

47. shamim

and i wanna try it later

48. krypton

ok sure