What is the torque on a dipole in an electric field? 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.
Table of Contents
1 When the torque is maximum and minimum?2 What is torque in electric field?3 What is torque in magnetic field?4 When would the torque be at a maximum?5 Related guide for What Is The Torque On A Dipole In An Electric Field?5.1 Which case torque on the dipole is I Maximum II minimum?5.2 For what angle of inclination the torque on a dipole in an electric field be maximum?5.3 How does torque on the dipole in uniform field depends on its orientation?5.4 How do you calculate torque on a dipole?5.5 How do you calculate minimum torque?5.6 When the torque experienced by an electric dipole is maximum and minimum?5.7 What is the minimum value of torque?5.8 Where is the electric field the maximum in a dipole?5.9 Does an electric dipole always experience a torque in electric field when is the torque on the electric dipole maximum and minimum in uniform electric field?5.10 What is the angle between the electric dipole moment and the electric field strength?5.11 What is the value of angle between electric dipole and electric field for minimum torque?5.12 Which produces the largest torque?5.13 What is torque in physics class 12?5.14 What will be the torque acting on a dipole if it is placed parallel to the electric field?5.15 How the torque and net force affected when the same dipole is placed in non uniform electric field?5.16 What is maximum torque in induction motor?5.17 What is maximum torque of motor?5.18 How do you calculate max rpm torque?5.19 What is peak torque in dc motor?5.20 When the dipole is in stable equilibrium the magnitude of torque is?
When the torque is maximum and minimum?
Answer: Torque is defined as τ = rF sin θ, where F is the force, r is the distance from the pivot that the force is applied, and θ is the angle between r and F. (b) The maximum torque occurs when θ is a right angle and sin θ = 1. (c) Zero (minimum) torque occurs when θ is zero and sin θ = 0.
What is torque in electric field?
The measure of force that causes an object to rotate about an axis is known as torque. Torque is a vector quantity and its direction depends on the direction of the force on the axis.
What is torque in magnetic field?
A magnetic field exerts a torque which tries to align the normal vector of a loop of current with the magnetic field. The size of the torque on a loop of current is torque = (# turns) * (current) * (loop area) * (mag field) * sin(theta) where theta is the angle between the magnetic field and the loop’s normal vector.
When would the torque be at a maximum?
Torque Calculation
Note that the torque is maximum when the angle is 90 degrees. A practical way to calculate the magnitude of the torque is to first determine the lever arm and then multiply it times the applied force.
Related guide for What Is The Torque On A Dipole In An Electric Field?
Which case torque on the dipole is I Maximum II minimum?
Case 1: When Ɵ is 900 then Torque is maximum and is equal to pE which means the dipole moment should be perpendicular to the direction of the uniform electric field E. Case 2: When Ɵ is 00, then Torque is minimum.
For what angle of inclination the torque on a dipole in an electric field be maximum?
So Torque is maximum on Dipole if angle between P amd E is 90 degree.
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 calculate torque on a dipole?
τ = (q E sinθ) d = q d E sinθ
Since ‘qd’ is the magnitude of dipole moment (p), and the direction of dipole moment is from positive to negative charge; torque is the cross product of dipole moment and electric field.
How do you calculate minimum torque?
To calculate load torque, multiply the force (F) by the distance away from the rotational axis, which is the radius of the pulley (r). If the mass of the load (blue box) is 20 Newtons, and the radius of the pulley is 5 cm away, then the required torque for the application is 20 N x 0.05 m = 1 Nm.
When the torque experienced by an electric dipole is maximum and minimum?
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 minimum value of torque?
The torque is minimum refers to zero torque. This is possible only when the angle is 90 or perpendicular.
Where is the electric field the maximum in a dipole?
When the angle between the dipole moment and electric field is 180° then the potential energy of electric dipole is maximum.
Does an electric dipole always experience a torque in electric field when is the torque on the electric dipole maximum and minimum in uniform electric field?
Maximum torque acts on a dipole when the angle between P and E is maximum i.e. θ=90∘and its minimum when θ=0∘ in a uniform electric field.
What is the angle between the electric dipole moment and the electric field strength?
Therefore, the angle between dipole moment and electric field is 180°.
What is the value of angle between electric dipole and electric field for minimum torque?
The dipole is in constant equilibrium if θ = 00. 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.
Which produces the largest torque?
For all cases the magnitude of the applied force is the same. the force that is at 90° to the lever arm is the one that will have the largest torque.
What is torque in physics class 12?
Torque is the measure of the force that can cause an object to rotate about an axis. Hence, torque can be defined as the rotational equivalent of linear force. The point where the object rotates is called the axis of rotation. In physics, torque is simply the tendency of a force to turn or twist.
What will be the torque acting on a dipole if it is placed parallel to the electric field?
In case the electric dipole gets parallel or antiparallel to the electric field then the torque will be zero.
How the torque and net force affected when the same dipole is placed in non uniform electric field?
When an electric dipole is placed in a non uniform electric the net force on the dipole due to the electric field will be non-zero as well as the torques it experiences in the field will be non-zero.
What is maximum torque in induction motor?
So, when slip s = R2 / X2, the torque will be maximum and this slip is called maximum slip Sm and it is defined as the ratio of rotor resistance to that of rotor reactance. NOTE: At starting S = 1, so the maximum starting torque occur when rotor resistance is equal to rotor reactance.
What is maximum torque of motor?
This condition is possible when the value of the denominator shown below is equal to zero. Hence, the developed torque is maximum when the rotor resistance per phase is equal to the rotor reactance per phase under running conditions.
How do you calculate max rpm torque?
Find the peak speed of the motor or engine in rpm. It should be displayed on the nametag on the motor or equipment; if not, refer to the manufacturer’s specifications. Calculate torque (T) using the formula T = 5,252 x horsepower/rpm.
What is peak torque in dc motor?
Peak torque is the motor’s maximum torque it can output for a short period of time, typically for acceleration/deceleration or overcoming friction. Our motors are rated for 10% duty cycle and thus the peak torque is 3.1 times the continuous stall torque.
When the dipole is in stable equilibrium the magnitude of torque is?
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.