Question

the electric field due to an electric dipole at for off point at a distance r is directly proportional to (a) 1/r (b) 1/r2 (c) 1/r3 (d) 1/r4 ​

Answer 1

Answer:

its answer is 1/r³ ok it is very easy

Answer 2

Answer:

Electric field due to an electric dipole at for off point at a distance r is directly proportional to 1/r*3

Explanation:

Generally the electric field due to the point charge is

$e = \frac{kq}{ {r}^{2} }$

and dipole moment is p=qr

$q = \frac{p}{r}$

electric field due to point charge is given by

$e = k \frac{ \frac{p}{r} }{ {r}^{2} }$

here k is constant

so

$e = \frac{p}{ {r}^{3} }$

$e \infty \frac{1}{ {r}^{3} }$

Electric field due to an electric dipole at for off point at a distance r is directly proportional to 1/r*3

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