- #1

physconomic

- 15

- 1

- Homework Statement
- We consider two dipoles p1 and p2 and take r to be the position vector of p2

measured from p1.

Find Uint (interaction energy)

Draw graphs showing how Uint depends upon the relative orientation of the dipoles

in the following cases:

(i) p1 is parallel to r,

(ii) p1 is perpendicular to r.

- Relevant Equations
- U = -p.E

UInt = 1/(4*pi*epsilon0*r^3)*[p1.p2-3(p1.r^)(p2.r^)]

Draw graphs showing how interaction energy depends upon the relative orientation of two dipoles

if

(i) p1 is parallel to r,

(ii) p1 is perpendicular to r.

I've done the first part and found the interaction energy as

UInt = 1/(4*pi*epsilon0*r^3)*[p1.p2-3(p1.r^)(p2.r^)]

which I know is correct.

I know for the perpendicular case the dot product of p1 and r would be 0 - but I'm not sure what the graph would look like.

if

(i) p1 is parallel to r,

(ii) p1 is perpendicular to r.

I've done the first part and found the interaction energy as

UInt = 1/(4*pi*epsilon0*r^3)*[p1.p2-3(p1.r^)(p2.r^)]

which I know is correct.

I know for the perpendicular case the dot product of p1 and r would be 0 - but I'm not sure what the graph would look like.