Q. 11

(a) Define torque

Answer :

(a) The torque acting on the dipole is given by,



Where, F= Magnitude of force


r= perpendicular distance.



This is vector notation of torque.


(b) The net force becomes zero when the dipole is place in non - uniform electric field.


(c) (i) For parallel p, θ=0


Thus, sin θ=0


The torque acting on the dipole is given by,


τ = pE sin θ = 0


Thus, torque becomes zero when p is parallel.


(ii) For perpendicular p, θ = 90


Thus, sin θ = 1


The torque acting on the dipole is given by,


τ= pE sin θ = pE


Thus, torque increases when p is perpendicular.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

A. Derive the expPhysics - Board Papers

(a) Draw the equiPhysics - Board Papers

Two charges –q eaPhysics - Exemplar

Assume that each HC Verma - Concepts of Physics Part 2

Consider a regionPhysics - Exemplar