AC generator calculation question

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Homework Help Overview

The discussion revolves around calculating the electromotive force (emf) induced in a coil of specific dimensions and characteristics when subjected to a magnetic field. The problem involves concepts from electromagnetism, specifically related to AC generators.

Discussion Character

  • Mathematical reasoning, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the relevant equations for calculating emf and share their attempts at solving the problem. There is a focus on the application of the formula and the parameters involved.

Discussion Status

Some participants have provided their calculations and expressed uncertainty about the correctness of their methods. Others have indicated that they do not see any issues with the calculations presented, suggesting a level of agreement on the approach taken.

Contextual Notes

There is mention of the original poster being new to the forums, which may indicate a learning context. The discussion also reflects on the interpretation of the problem setup and the assumptions made regarding the situation.

Th3_PhYsIcS
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1. Calculate the emf induced in ONE side of a coil of length 0.4m and width 0.3m, when there are 50 turns in the coil and the flux density is 96.8 mT, and the coil is rotated 30 degrees from the vertical. Frequency is 50 Hz and the long sides are the ones facing the magnets.
 
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Relevant equations? Your attempt? Please follow the template.
 
2. Relevant equation(s): EMF = v l B N sinθ

3. My attempt: v = 2 ∏ (0.3/2) * 50 = 47.13 ms-1 ∴ emf = 47.13(0.4)(96.8 * 10^-3)(50)(sin30) = 45.62 V
 
is ^ my method correct. Sorry i am new to these forums
 
Can't find anything wrong, so unless the picture we have of the situation is wrong, that's the emf !
 

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