AIIMS 25 May 2019 Evening Question Paper with solutions for online practice

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Question : 28 of 116
 
Marks: +1, -0
The current density is a solid cylindrical wire of radius R, as a function of radial distance r is given by J(r)=J0(1−‌‌
r
R
)
The total current in the radial region r=0 to r=
R
4
will be:
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