OnlineCBT
Physics · PYQ NEET UG 2020
हिन्दीA short electric dipole has a dipole moment of \( 16 \times 10^{-9}\text{ C m} \). The electric potential due to the dipole at a point at a distance of \( 0.6\text{ m} \) from the centre of the dipole, situated on a line making an angle of \( 60^\circ \) with the dipole axis is: \( (\frac{1}{4\pi\varepsilon_0} = 9 \times 10^9\text{ N m}^2/\text{C}^2) \)
Correct answer · Option 1
200 V
Explanation
Potential \( V = \frac{1}{4\pi\varepsilon_0} \frac{p \cos\theta}{r^2} = \frac{9 \times 10^9 \times 16 \times 10^{-9} \cos(60^\circ)}{(0.6)^2} = \frac{9 \times 16 \times 0.5}{0.36} = \frac{72}{0.36} = 200\text{ V} \).
