What is the net electric flux through a closed surface surrounding an electric dipole? Derive the expression for electric field intensity both inside and outside a uniformly charged spherical call. What is the total charged enclosed by a closed surface if the electric flux entering and leaving the surface are 20000 N / Cm2 and 30000 N / Cm2 respectively? GivenEpsilon, not = 8.85* 10-12C2N-1m-2.

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AB is a current carrying conductor in the plane of the paper as shown in the figure below. (i) What is the direction of the magnetic field produced by it at point ‘X’? Write the statement of the rule used to find the direction of field lines. (ii) If the polarity of the battery connected to the wire is reversed, how would the direction of the magnetic field be changed? (iii) Point ‘X’ is at a distance r1 and point ‘Y’ is at a distance r2 (r1

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For minimum flux the angle between the magnetic field and normal to the surface is