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Learn the formula and derivation of torque on an electric dipole in a uniform electric field, and how it depends on the dipole moment and electric field. Find examples, FAQs, and a quiz to test your knowledge on torque and electric dipole.
- 8 min
- Torque is the cross multiplication of force vector and Position vector (a vector from the point about which the torque is being measured to the poi...
- τ = F r Sinθ Where, r = Position vector (a vector from the point about which the torque is being measured to the point where the force is applied...
- When the same magnitude of opposite charge is lined by a small distance, “d” is known as “Electric Dipole”.
- It is the product of the magnitude of pair of charges (q) and the distance between them (d). p = qd The direction of the Electric Dipole moment i...
- It is defined as Electric force per unit charge. E = F/q SI Unit: N/C Physical Quantity: Vector An electric field is a physical field that enve...
- Torque
- Torque on Electric Dipole
- Torque on An Electric Dipole
- Derivation of Torque on An Electric Dipole
- What Is The Torque on Dipole in An Uniform Electric field?
Torque is a vector quantity whose direction is determined by the force acting on the axis. The torque vector’s magnitude is determined as follows: τ = F r sinθ where 1. F is the force acting on the axis, 2. r is the length of moment arm, 3. θ is the angle between the force vector and moment arm, & 4. τ is the torque vector
The product of the magnitude of these charges and the distance between them is the electric dipole moment. The electric dipole moment is a vector that has a clear direction from negative to positive charge. The electric dipole moment, p = q d where 1. q is the magnitude of charge & 2. d is the separating distance.
Consider a dipole that is placed in a uniform external field ‘E’ to calculate the torque experienced by the dipole when placed in an external field. The positive charge will be subjected to an electric force of ‘qE’ magnitude in the upward direction, while the negative charge will be subjected to an electric force of ‘qE’ magnitude in the downward ...
Consider a dipole with charges +q and –q that form a dipole because they are separated by a distance of d. Place it in a homogeneous electric field of strength E, with the dipole’s axis forming an angle θ with the electric field. The force on the charges, F = ± q E The components of the force perpendicular to the dipole, F = ± q E sinθ Since these ...
Consider a dipole consisting of two charges, +q and -q, separated by a distance d. When placed in a uniform electric field with strength E, the axis of the dipole is perpendicular to the field. Torque is a measure that quantifies the rotational force applied to an object around an axis. An electric dipole consists of a pair of equal but opposite ch...
Sep 26, 2023 · Calculating Torque in a Uniform Electric Field. Consider a dipole where the charges +q and -q form a dipole, and they are separated by distance d. Place it in a uniform electric field with strength E so that the dipole's axis makes an angle with the electric field, θ. Hence, the force is expressed when perpendicular to the dipole is,
Learn how to calculate the torque on an electric dipole in an electric field using a vector product and a scalar product. See the right hand rule, the dipole potential and the energy of an electric dipole.
Subsection 33.2.2 (Calculus) Dipole in a Non-Uniform Electric Field. Electric force on a dipole is zero if the electric field is uniform since the oppositely directed forces on \(+q\) and \(-q\) of equal magnitude cancel each other exactly.
Jun 9, 2021 · Let's derive the expression for the torque acting on a dipole placed in a uniform electric field. We will also explore the stable and unstable equilibrium po...
- 12 min
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- Khan Academy India - English
5 days ago · 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.
