AP EAMCET · PHYSICS · Electrostatics
An electric dipole with dipole moment \(p\) is placed with its axis at \(30^{\circ}\) to a uniform electric field. The work done in rotating the dipole to a position where its axis is perpendicular to the field is
- A \(2 p E\)
- B \(\frac{2 p E}{\sqrt{3}}\)
- C \(\frac{\sqrt{3} p E}{2}\)
- D 0
Answer & Solution
Correct Answer
(C) \(\frac{\sqrt{3} p E}{2}\)
Step-by-step Solution
Detailed explanation
Given, for an electric dipole, \(\begin{aligned} & \theta_1=30^{\circ} \\ & \theta_2=90^{\circ} \end{aligned}\) \(\therefore\) Work done in rotating the dipole from \(\theta_1=30^{\circ}\) to a position, where its axis is perpendicular \(\left(\theta_2=90^{\circ}\right)\) to…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- If \(\mathrm{B}\) is magnetic field and \(\mathrm{q}\) is the charge then the following represents the Gauss's law of magnetismAP EAMCET 2023 Easy
- If two particles A and B of charges \(1.6 \times 10^{-19} \mathrm{C}\) and \(3.2 \times 10^{-19} \mathrm{C}\) respectively are separated by a distance of 3 cm in air, then the magnitude of electrostatic force on particle \(A\) due to particle \(B\) isAP EAMCET 2025 Easy
- A gas volume \(251 \mathrm{~cm}^3\) at \(20^{\circ} \mathrm{C}\) and pressure \(78 \mathrm{~cm}\) of \(\mathrm{Hg}\). Find its volume at NTPAP EAMCET 2020 Medium
- Two capacitors of capacity \(4 \mu \mathrm{F}\) and \(6 \mu \mathrm{F}\) are connected in series to a \(500 \mathrm{~V}\) battery.
The potential difference across \(4 \mu \mathrm{F}\) capacitor isAP EAMCET 2023 Easy - Two photons of energies twice and thrice the work function of a metal are incident on the metal surface. Then, the ratio of maximum velocities of the photoelectrons emitted in the two cases respectively, isAP EAMCET 2002 Easy
- A bus is moving with a velocity of \(5 \mathrm{~ms}^{-1}\) towards a huge wall. The driver sounds horn of frequency \(165 \mathrm{~Hz}\). If the speed of sound in air is \(335 \mathrm{~ms}^{-1}\), the number of beats heard per second by the passengers in the bus will beAP EAMCET 2017 Medium
More PYQs from AP EAMCET
- The variance of the following distribution is
AP EAMCET 2018 Easy - Which among the following is a physical property of molecular solids?AP EAMCET 2020 Easy
- The time \(T\) of oscillation of a simple pendulum of length \(L\) is governed by \(T=2 \pi \sqrt{\frac{L}{g}}\), where \(g\) is constant. The percentage by which the length be changed in order to correct an error of loss equal to 2 minutes of time per day isAP EAMCET 2019 Easy
- If \(s\) and \(p\) are respectively the sum and the product of the slopes of the lines \(3 x^2-2 x y-15 y^2=0\), then \(s: p\) is equal toAP EAMCET 2011 Easy
- If a function \(f\) defined by \(f(x)=\left\{\begin{array}{cc}\frac{1-\cos 4 x}{x^2}, & x < 0 \\ a, & x=0 \\ \frac{\sqrt{x}}{\sqrt{16+\sqrt{x}}-4}, & x>0\end{array}\right.\) is continuous at \(\mathrm{x}=0\), then \(\mathrm{a}=\)AP EAMCET 2025 Medium
- Number of four digit numbers that can be formed using all the digits except zero such that every number has exactly 2 distinct digits in it isAP EAMCET 2022 Medium