24. Electric Force & Field; Gauss' Law

Dipole Moment

Electric Dipole and Electric Dipole Moment

Simple Lesson on Electric Dipole Moment and Torque of Dipole Moment in Electric Field

Torque on a Dipole. An electric dipole with dipole moment p is in a uniform external electric field E. (c) Show that for the stable orientation in part (b), the dipole’s own electric field tends to oppose the external field.

Electric Dipole Moment Example # 1

Energy & Torque of Dipole Moments

Point charges q1 = -4.5 nC and q2 = +4.5 nC are separated by 3.1 mm, forming an electric dipole. (b) The charges are in a uniform electric field whose direction makes an angle of 36.9° with the line connecting the charges. What is the magnitude of this field if the torque exerted on the dipole has magnitude 7.2 * 10^-9 N•m?

Intro To Dipole Moment

A dipole in an electric field

Torque on a Dipole. An electric dipole with dipole moment p is in a uniform external electric field E. (a) Find the orientations of the dipole for which the torque on the dipole is zero.

ELECTRIC DIPOLE

What is electric dipole and dipole moment?

Torque on a Dipole. An electric dipole with dipole moment p is in a uniform external electric field E. (b) Which of the orientations in part (a) is stable, and which is unstable? (Hint: Consider a small rotation away from the equilibrium position and see what happens.)

Physics 36   Electric Field (15 of 18) The Electric Dipole

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