Table of Contents
- 1 How do you calculate torque from angular momentum?
- 2 How would you explain torque on a current loop in magnetic field?
- 3 How do you calculate net torque?
- 4 How do you calculate max torque?
- 5 How do you calculate the torque of a magnetic field?
- 6 What is the relation between magnetic torque and AMP’s law?
How do you calculate torque from angular momentum?
The equation net τ=ΔLΔt net τ = Δ L Δ t gives the relationship between torque and the angular momentum produced.
How would you explain torque on a current loop in magnetic field?
Motors have loops of wire in a magnetic field. When current is passed through the loops, the magnetic field exerts torque on the loops, which rotates a shaft. Electrical energy is converted to mechanical work in the process.
What is torque in circular motion?
Torque is a measure of how much a force acting on an object causes that object to rotate. The object rotates about an axis, which we will call the pivot point, and will label ‘O’.
How do you convert momentum to torque?
By definition, torque τ = r × F. Therefore, torque on a particle is equal to the first derivative of its angular momentum with respect to time.
How do you calculate net torque?
The net torque is therefore τnet=∑i|τi| = 160 − 60 + 120 + 10 = 230 N • m. Note that each force that acts in the counterclockwise direction has a positive torque, whereas each force that acts in the clockwise direction has a negative torque.
How do you calculate max torque?
Torque on the loop can be found using τ=NIABsinθ τ = N I A B sin . Maximum torque occurs when θ = 90º and sin θ = 1.
How do you calculate torque of a circle?
Torque Calculation 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. The lever arm is the perpendicular distance from the axis of rotation to the line of action of the force. and the magnitude of the torque is τ = N m.
How do you calculate torque applied?
The magnitude of a torque about a fixed axis is calculated by finding the lever arm to the point where the force is applied and using the relation |→τ|=r⊥F | τ → | = r ⊥ F , where r⊥ is the perpendicular distance from the axis to the line upon which the force vector lies.
How do you calculate the torque of a 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.
What is the relation between magnetic torque and AMP’s law?
Magnetic Torques and Amp’s Law. A magnetic field exerts a force on a straight wire carrying current; it exerts a torque on a loop of wire carrying current. Torque causes an object to spin around a fixed axis. Each loop of current has a direction associated with it: its normal vector is perpendicular to…
What is the torque on a current carrying loop in uniform?
Torque on a current carrying loop in a uniform magnetic field (i) When a coil carrying current is placed in uniform magnetic field, the net force on it is zero but it experiences a torque or couple. (ii)Torque action on a current carrying coil placed in uniform magnetic field is τ → = M → × B →
What is the direction of current induced by a magnetic rod?
The direction of the current induced by the rod’s downward motion is counterclockwise, since this direction produces a magnetic field within the loop that points out of the page—in the same direction as the original field.