Question

An electric dipole is placed as shown in the figure.
The electric potential (in 102 V) at point P due to the dipole is (ε0 = permittivity of free space and $\frac{1}{4\pi\epsilon_0}=K$):

• A. $(\frac{5}{8})qk$
• B. $(\frac{8}{5})qk$
• C. $(\frac{8}{3})qk$
• D. $(\frac{3}{8})qk$

Answer 1

Answer: (D)

$(\frac{3}{8})qk$

Answer 2

$v=\frac{kq}{2\times 10^{-2}}-\frac{kq}{8\times10^{-2}}$

$=kq[\frac{3}{8}]\times 10^{-2}$

So, the correct option is (D): $(\frac{3}{8})qk$