Derive an expression for l work done in rotating an electric dipole a uniform electric field?​

Answers (1)
S safeer



\vec{\varsigma }= \vec{P}\times \vec{E} 
\vec{\varsigma }= pE\sin \theta
where, \vec{\varsigma }= torque
             p= momentum
Now
work done dw= \varsigma \cdot d\theta
dw= PE\sin \theta d\theta
on integrating both side,we have
w=\int_{\theta 1}^{\theta 2}dw= \int_{\theta 1}^{\theta 2}PE\sin \theta d\theta
w= pE\left [ \cos \theta _{1}-\cos \theta _{2} \right ]

Preparation Products

Knockout NEET July 2020

An exhaustive E-learning program for the complete preparation of NEET..

₹ 15999/- ₹ 6999/-
Buy Now
Rank Booster NEET 2020

This course will help student to be better prepared and study in the right direction for NEET..

₹ 9999/- ₹ 4999/-
Buy Now
Knockout JEE Main July 2020

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 12999/- ₹ 6999/-
Buy Now
Test Series NEET July 2020

Take chapter-wise, subject-wise and Complete syllabus mock tests and get in depth analysis of your test..

₹ 4999/- ₹ 2999/-
Buy Now
Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 11999/-
Buy Now
Exams
Articles
Questions