67. (III) (a) Show that at points along the axis of a dipole (along the same line that contains +Q and -Q), the electric field has magnitude 1 2p 4TE0 r3 E = for r l (Fig. 21-45), where r is the distance from a point to the center of the dipole. (b) In what direction does E point?

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p-7 Please I need help with this question needed very clearly and step by step explanation and NEEDED ONLY TYPED SOLUTIONS PLEASE NO HANDWRITTEN please, will be really appreciated for your help.

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E,
3D
0+Q
FIGURE 21-45 Electric field due
to an electric dipole.
Transcribed Image Text:E, 3D 0+Q FIGURE 21-45 Electric field due to an electric dipole.
67. (III) (a) Show that at points along the axis of a dipole
(along the same line that contains +Q and -Q), the electric
field has magnitude
1 2p
4TE0 r3
E
for r»l (Fig. 21-45), where r is the distance from a
point to the center of the dipole. (b) In what direction does
E point?
Transcribed Image Text:67. (III) (a) Show that at points along the axis of a dipole (along the same line that contains +Q and -Q), the electric field has magnitude 1 2p 4TE0 r3 E for r»l (Fig. 21-45), where r is the distance from a point to the center of the dipole. (b) In what direction does E point?
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