Electric potential at any point is V=-5x+3y+15z, then the magnitude of the electric field is

Electric potential at any point is V=-5x+3y+15z, then the magnitude of the electric field is

  1. A

    32

  2. B

    42

  3. C

    52

  4. D

    7

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    Solution:

      E=i^dvdx+j^dvdy+kdvdz

    Ex=-dVdx=-(-5)=5,Ey=-dVdy=-3  and Ez=-dVdz=-15

       Enet =Ex2+Ey2+Ez2=(5)2+(-3)2+(-15)2=7

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