Question: For what angle of inclination the torque on dipole in an electric field is minimum?

At what angle the torque on a dipole in a uniform field is maximum?

τ = p E sinθ

The value of sine function is maximum at an angle of 90°, i.e., sin90° = 1, so the dipole experiences the maximum torque at an angle of 90° with the field, or we can say that the dipole experiences the maximum torque when it is held perpendicular to the electric field.

In which condition torque acting on dipole is maximum and minimum?

Torque is maximum when dipole is held perpendicular to the field.

What is the value of angle between electric dipole and electric field for minimum torque?

The dipole is in constant equilibrium if θ = 0. A dipole in stable equilibrium, when Electric filed and dipole moment are perpendicular to each other i.e. the angle between them is zero degrees and torque will be maximum.

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At what angle is torque half maximum?

When θ=0° θ = 0 ° , the torque is zero and the disk does not rotate. When θ=90° θ = 90 ° , the torque is maximum and the disk rotates with maximum angular acceleration.

How does torque on the dipole in uniform field depends on its orientation?

Electric dipole will experience a torque when dipole vector is not parallel to electric field direction. The torque τ = p × E = pESinθ. when p and E are parallel then angle θ between the two vectors is zero, hence there will not be any torque.

How do you find the torque of a dipole?

An electric dipole in an electric field that is external is subjected to a torque written as τ = pE sin θ where symbol θ is the angle which is between p and E. The torque tends to align the moment of the dipole p in the direction of E.

What is torque acting on dipole?

When an electric dipole moment is kept in an electric field, force acts on both charges in a dipole. The force acting on the charges acts as a couple and the dipole experiences a torque. The torque is maximum when it makes [{{90}^{o}}] with the electric field, which is the most unstable position.

What is the angle between electric dipole moment and electric field strength?

Dipole moment and electric field are opposite to each other on equatorial line. Hence the angle between them is 180 degrees.

When an electric dipole is held at an angle in a uniform electric field?

Answer: the forces experienced by the 2 charges constituting the electric dipole when placed in an uniform external electric field are equal and opposite in nature, the net force on the dipole is zero. No torque act on the dipole when the moment of electric dipole is parallel to the electric field.

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How does torque affect the dipole in an electric field?

Electric Charges and Fields. How does a torque affect the dipole in an electric field? The torque tends to align the dipole in the direction of the electric field. … The force experienced, or the path followed by charge cannot be discontinuous and hence the lines are not broken.

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

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

What is the maximum value of torque acting on a dipole?

Answer: When an electric dipole moment is kept in an electric field, force acts on both charges in a dipole. The force acting on the charges acts as a couple and the dipole experiences a torque. The torque is maximum when it makes 90o with the electric field, which is the most unstable position.

What angle is minimum Torque?

(c) Zero (minimum) torque occurs when θ is zero and sin θ = 0.

When the Torque of an electric dipole will be minimum?

Case 2: When Ɵ is 0, then Torque is minimum. It is equal to 0 as sin 0 is zero which means the dipole moment should be parallel to the direction of the uniform electric field E.

At what angle work done is minimum?

The angle between force and displacement should be θ = 90° for minimum work.