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October 12, 2025, 02:38:51 pm
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Author Topic: EMF/FLUX - Question  (Read 980 times)  Share 

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naved_s9994

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EMF/FLUX - Question
« on: July 29, 2009, 07:45:47 pm »
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Im a bit lost with the worked solution.
This question is from Insight 2008 Q4

A coil, with 50 turns is set up between two magnets. The maximum flux through the coil is 8 x 10^-3Wb. Area is 10cm by 20cm (I.e 0.02m^2)

Q. Show that if the coil is rotated at 10Hz, the average Emf generated if 1.6V
A. The method of solving in the solutions, makes me uncertain.

Can anyone solve this?

Thanks
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/0

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Re: EMF/FLUX - Question
« Reply #1 on: July 29, 2009, 10:10:52 pm »
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That's funny, the exam says there are 50 turns, the solutions say 500 turns!

And the max flux is according to the paper

I get a different answer :/



« Last Edit: July 29, 2009, 10:12:32 pm by /0 »
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arthurk

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Re: EMF/FLUX - Question
« Reply #2 on: August 01, 2009, 09:55:11 pm »
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i get 0.16V
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TrueTears

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Re: EMF/FLUX - Question
« Reply #3 on: August 01, 2009, 10:01:44 pm »
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Both ways work, despite they give different answers, the average change in EMF is sufficient for VCE level.
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naved_s9994

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Re: EMF/FLUX - Question
« Reply #4 on: August 01, 2009, 10:11:02 pm »
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the answer is 1.6V btw.  Arthurk decimal places maybe? 
But, yea...something is very mysterious about these small company trial papers :(
lol
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arthurk

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Re: EMF/FLUX - Question
« Reply #5 on: August 02, 2009, 09:07:18 pm »
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but have u tried the question where have i gone wrong:(
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