What is the expression for potential energy of a dipole in a uniform electric field?

P.E=−pEcosθ=−p⋅E. This is negative when θ is acute and positive when θ is obtuse.

What is potential energy of a magnetic dipole in a magnetic field?

Potential Energy of magnetic dipole in a magnetic field is defined as the amount of work done in rotating the dipole from zero potential energy position to any desired position.

How do you derive the expression for potential energy?

Derivation for the equation of Potenstial Energy: Let the work done on the object against gravity = W Work done, W = force × displacement Work done, W = mg × h Work done, W = mghSince workdone on the object is equal to mgh, an energy equal to mgh units is gained by the object .

How do you find the potential energy of a bar magnet?

Formula used: In this solution, we will use the following formula: Potential energy when a magnet is placed in a magnetic field: $U = – M.B$ where $M$ is the magnetic moment and $B$ is the external magnetic field.

What is meant by potential energy of a dipole?

Potential energy of a dipole in an external fieldElectric potential energy of an Electric dipole in dipole from zero energy position to the desired position (The zero enrgy position to be one when the dipole When an electric dipole of dipole moment p is on it such that P = [ P ] × [ E ] This torque tends to rotate the …

What does derive an expression mean?

Derive means to obtain the result from specified or given sources. For example, you might have other formulas that have those variables in it, and you’re supposed to use those formulas, and manipulate them algebraically, to get the final result in your link. 3.

What is potential energy in magnets?

Magnetic potential energy is energy stored in a system of magnets as a result of the exertion of a magnetic force on each other. When two magnets attract or repel each other potential energy can be stored in their relative positions.

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