Question

18 The electric field of an electric dipole along the dipole axis is approximated by Eqs. 22-8 and 22-9. If a binomial expansion is made of Eq. 22-7, what is the next term in the expression for the di pole's electric field along the dipole axis? That is, what is Enext in the expression E- 2 πε0

EQUATIONS 22-7, 22-8, 22-9, listed below

22-7:

$E=\frac{q}{2\pi \varepsilon_{0} z^3}*\frac{d}{(1-(d/2z)^2)^2}$

22-8:

$E=\frac{1}{2\pi \varepsilon_{0} }*\frac{qd}{z^3}$

22-9:

$E=\frac{1}{2\pi \varepsilon_{0} }*\frac{p}{z^3}$

since qd=p the magnitude of electric dipole moment vector, direction p taken from negative to positive end of dipole

Answer 1

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