Question

The electic potential due to a small electric dipole at a large distance r from tha centre of tha dipole is proportional to ? a)r ,b)1/r,c)1/r squre,d) 1/rcube. ..........................- give me a right answer?~

Answer 1

$\bold{ans: (c)}$

The electric potential due to a small electric dipole at a large distance r from from the centre of dipole is proportional to 1/r² .

actually, we know the formula of electric potential due to dipole ( P )

$V = \frac{KPcos{\theta}}{r^2}$
here, K is kappa constant, P is dipole r is the distance from the centre of the dipole.
here it is clear that, V is inversely proportional to square of r .

Answer 2

Answer is option C: 1/r²

Explanation :
Electric dipole is an arrangement in which two equal and opposite charges are separated by small distance .

Electric potential due to dipole at a point away from the dipole is given by equation :

V=(1/4πε₀) Pcosθ/r²

As we can see that Electric potential is inversely proportional to r²

Hence. V α 1/r²