Question

write the expression for torque experienced by electric dipole in an external uniform electric field and explain the termswhen is the torque maximum ​

Answer 1

Explanation:with the direction of electric field. Thus, electric dipole is under the action of two equal and unlike parallel forces giving rise to a torque on the dipole. ... As qA = qc and since OA=OC, the charge of 1 μC experiences equal and opposite forces FOA and FOc due to charges qA and qC.

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Answer 2

Answer:

so Dear,

Let's first Better understand Torque

The measure of force that causes an object to rotate about an axis is known as torque.Its a vector quantity. The magnitude of the torque vector is calculated as follows:

τ=FrsinΘ

and.....

A pair of electric charges with an equal magnitude but opposite charges separated by a distance d is known as an electric dipole. The electric dipole moment is also vector having a defined direction from the negative charge to the positive charge.

p=qd

Let us,first assume an electric dipole is placed in a uniform magnetic field.Now, each charge of dipole experience a force qE in electric field. Since points of action of these force are different, these equal and antiparallel force give rise to couple that rotate the dipole and make the dipole to align in the direction of field.Torque experienced by the dipole is (qE)×(2dsinθ) where 2d is the length of dipole and zero is the angle between dipole and field direction.

T=qE×2dsinθ=(q×2d)×Esin =p×Esinθ=p×E

p and E are vectors representing dipole moment and electric field.

The torque experienced by electric dipole in external electric field is τ = pEsinθ

Need to rub Your Brain To understand!!