Is this solution correct?

  • #1
931
56
I found this answer for an question of the Halliday's book but the units m².T.rad/s in the answer don't make sense with voltage. (sorry my poor english)
And I cannt understand why they haven't expressed the current as a function of time.

2ufcavn.jpg
 

Answers and Replies

  • #2
516
63
I found this answer for an question of the Halliday's book but the units m².rad/s in the answer don't make sense with voltage. (sorry my poor english)
And I cannt understand why they haven't expressed the current as a function of time.

2ufcavn.jpg
You have missed the T (tesla) in the permeability of free space.
 
  • #3
931
56
You have missed the T (tesla) in the permeability of free space.
Okay, I notice that. Can you explain me why the current was not expressed as a function of time? I learned from the Faraday's formula that the flux's variation is basically a derivative wich involves the time.
 
Last edited:
  • #4
3,755
424
Because what they wrote is the amplitude of the emf.
The amplitude is not time dependent. The formula includes the amplitude of the current, io.
 
Last edited:

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