Note: Stable equilibrium means the lowest potential energy at the equilibrium point. Therefore the stable equilibrium the torque should be zero and the potential energy of the dipole should be minimum. Whereas the unstable equilibrium torque will be zero and the potential energy should be maximum or positive.

What are stable and unstable equilibrium for a dipole?

Note: Stable equilibrium means the lowest potential energy at the equilibrium point. Therefore the stable equilibrium the torque should be zero and the potential energy of the dipole should be minimum. Whereas the unstable equilibrium torque will be zero and the potential energy should be maximum or positive.

What is the position of unstable equilibrium of a dipole?

(2)When the dipole is aligned anti-parallel to the electric field (i.e. the angle between dipole moment and the electric field is 180o), then the dipole is in unstable equilibrium.

What is the difference between a stable and unstable equilibrium state?

The difference between stable and unstable equilibria is in the slope of the line on the phase plot near the equilibrium point. Stable equilibria are characterized by a negative slope (negative feedback) whereas unstable equilibria are characterized by a positive slope (positive feedback).

What are the conditions for stability of electric dipole?

The dipole in an electric field will be in stable equalibrium if the following conditions are satisfied : (i) The resultant force on dipole is zero, i..e, there is no translatory motion of dipole. (ii) The torque on dipole is zero, i.e, there is no ratatroy motion pf dipole is minimum.

When the dipole is in unstable equilibrium then the angle between the dipole moment and the electric field is?

An electric dipole placed in a uniform electric field. If dipole is in unstable equilibrium, then angle between the direction of electric dipole and direction of electric field is e answer: 180° 0° 90° 60°

How do you find stable and unstable equilibrium in electrostatics?

If the net force acting on the charge is towards the equilibrium position, then the equilibrium is stable. But if the net force is away from the equilibrium position, then the equilibrium is unstable.

What is the difference between unstable and instable?

What is the difference between instable and unstable? “instable” is not a word; the prefix “in-” is not correct for this word. The correct form for “not stable” is “unstable”.

What is the difference between stable and equilibrium?

As nouns the difference between stability and equilibrium is that stability is the condition of being stable or in equilibrium, and thus resistant to change while equilibrium is the condition of a system in which competing influences are balanced, resulting in no net change.

What is stability of equilibrium?

equilibrium is said to be stable if small, externally induced displacements from that state produce forces that tend to oppose the displacement and return the body or particle to the equilibrium state. Examples include a weight suspended by a spring or a brick lying on a level surface.

What is the angle between the electric dipole moment and the electric field due to it on the axial line?

180°
Hence the angle between the electric fields due to dipole on its axial line is 180°.

What is the work done in rotating a dipole from its unstable equilibrium to stable equilibrium does the energy of the dipole increase or decrease?

Potential energy of dipole is the energy possessed by the dipole by virtue of its particular position in the electric field. Hence, work done , W = -2pE and hence the energy of the dipole decreases in this process.

What is stable equilibrium in electrostatics?

A: A particle is in stable equilibrium happens at a point P0 if it experiences no force at P0 and if we make a small perturbation (i.e., we move the particle from the equilibrium point by a small distance) there is a force that makes it return towards the equilibrium point. Such a force is called a restoring force.