ElectrostaticsMedium
Question
If a dipole of dipole moment 
is placed a uniformed electric field 
, then torque actingon it is given by
is placed a uniformed electric field , then torque actingon it is given byOptions
A.
B.
C.
D.
Solution
Given : Dipole moment of the dipole = 
and uniform electric field = 
. We know that dipole moment (p) =q.a (where q is the charge and a is dipole length). And when a dipole of dipole moment is placed in uniform electric field , then Torque(τ) = Either force × perpendicular distance between the two force = qE sin θ or τ = pE sin θ or 
(vector form)
and uniform electric field = . We know that dipole moment (p) =q.a (where q is the charge and a is dipole length). And when a dipole of dipole moment is placed in uniform electric field , then Torque(τ) = Either force × perpendicular distance between the two force = qE sin θ or τ = pE sin θ or (vector form)Create a free account to view solution
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