Himanshu Pandey Asked a Question
July 5, 2020 1:00 ampts 30 pts
first one is formula for electric field at point due to semi infinite wire on +ve z axis. second one is same for -ve z axis. my doubt is that if minus sign comes before second for why sign of r cap is not changing. if possible provide me derivation for second.
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  • Abhishek singh Best Answer
    Here is the solution for positive line charge placed along positive Z direction. See the calculations carefully. physics behind this question is simple, but calculations are tricky...
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    Abhishek singh
    It has been a long time, I haven't answered any questions on Eduncle. Today, I was scrolling some profiles and what I have seen is completely mind shattering. Both Tutors have ment...
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  • Abhishek singh thankyou
    Solution for the negative line charge placed along -Z direction. Calculations are exactly same as above part. Er and Ez calculations are exactly same(100% same). Where is the diffe...
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    Ruby negi
    yeah.. u r right..
  • Chandra dhawan
    Why rcap is not negative? Infinite wire possess cylindrical symmetry and in cylindrical coordinate r is distance from z axis in all direction, or in other words there is no negativ...
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    Chandra dhawan
    I agree with sir.... it's best explanation of this prob.. best regards
  • Chandra dhawan
    hope you get it dear.. 👍
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  • Ghost.
    Why rcap is not negative? Infinite wire possess cylindrical symmetry and in cylindrical coordinate r is distance from z axis in all direction, or in other words there is no negativ...
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  • Ghost.
    Did you remember when you write a vector in spherical or cylindrical system the , the components in radial direction is never been negative, because there is no negative direction,...
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