Deepanshu Chaudhary Asked a Question
May 14, 2020 7:07 pmpts 30 pts
In the 3rd problem, I am confused about the integration part. I am getting a factor of 2 after integration for phi. But in the answer it is not present.
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  • Abhishek singh
    here is the theorem
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  • Ruby negi Best Answer
    yeah dear, you are right, this is done like this.. thanku... hope now everything is clear... sometimes we also do mistakes, I feel Happy that you did correct....
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    Deepanshu Chaudhary
    thanks mam.. this was actually where I was stuck
  • Abhishek singh
    here is the solution. this is called gradient theorem
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    Deepanshu Chaudhary
    yeah thanks.. this part is clear but im still not getting how is it x^2y+ xz^3
  • Ruby negi
    hope now it is clear .
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    Deepanshu Chaudhary
    But if we integrate x^2 wrt y then we don't get the same answer. Nor do we get the same after integrating wrt z
  • Deepanshu Chaudhary
    but my doubt is why can't we do it Directly??
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  • Deepanshu Chaudhary
    Actually this should be the solution
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  • Abhishek singh
    Rubii has attached a solution. And it is right, but there is a little correction. Phi is just phi, it has no components (you are absolutely right) . you can calculate phi from all ...
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    Deepanshu Chaudhary
    But look at the answer below the question. It is 202 not 404. That is the 2 ka factor I have mentioned in my question
  • Ruby negi
    solution....
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    Deepanshu Chaudhary
    How is phi related to phi x, phi y and phi z?? Also, since phi is a scalar, how can it have x,y and z components?
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