Question

prove that P.E is maximum at external position ​

Answer 1

Explanation:

The force experienced by the charges is given as \[qE\] and\[+qE\] , as can be seen in the figure.

τ=

p

×

E

The amount of work done by the external torque

W=∫

θ

0

θ

1

τ

sxt

(θ)dθ=∫

θ

0

θ

1

pEsinθdθ =pE(cosθ

0

−cosθ

1

)

As we know that the work done in bringing a system of charges from infinity to the given configuration is defined as the potential energy of the system.

The potential energy U(θ)

U(θ)=pE(cosθ

0

−cosθ

1

)

hope you understand it

Answer 2

Answer:

Potential energy of a dipole in an external fieldElectric potential energy of an Electric dipole in dipole from zero energy position to the desired