Question

A dipole consists of two point charges±q separated by a distance s. The dipole is fixed...

A dipole consists of two point charges±q separated by a distance s. The dipole is fixed in place while a point charge Q is positioned to sit on the plane that bisects the dipole, a distance r ≫s from its center. The dipole is then released. What is the net torque experienced by the dipole?

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