Table of Contents
- 1 What is the relation between torque and magnetic field?
- 2 Does magnetic field produce torque?
- 3 What is the right hand rule torque?
- 4 What is torque current?
- 5 What is the density of magnetic field?
- 6 How do you calculate torque from RPM?
- 7 What is the difference between electric and magnetic field?
- 8 How does a magnet interact with a moving charge?
What is the relation between torque and magnetic field?
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.
Does magnetic field produce torque?
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. A current-carrying loop of wire attached to a vertically rotating shaft feels magnetic forces that produce a clockwise torque as viewed from above.
What is the formula of torque in magnetic field?
τ=NIABsinθ τ = NIAB sin can be used to calculate torque (τ ) a loop of N turns and A area, carrying I current feels in the presence of a magnetic field B. Although the forces acting upon the loop are equal and opposite, they both act to rotate the loop in the same direction.
What is the torque in uniform magnetic field?
This is the torque on a current-carrying loop in a uniform magnetic field. This equation can be shown to be valid for a loop of any shape. The loop carries a current I, has N turns, each of area A, and the perpendicular to the loop makes an angle θ with the field B. The net force on the loop is zero.
What is the right hand rule torque?
To use the right hand rule in torque problems, take your right hand and point it in the direction of the position vector (r or d), then turn your fingers in the direction of the force and your thumb will point toward the direction of the torque.
What is torque current?
Torque current is the portion of the total current to the motor that is in phase with the output voltage. The Power Factor will also improve as it is an expression of the phase angle between the voltage and the current.
What is torque rule?
Right Hand Rule for Torque The direction is perpendicular to both the radius from the axis and to the force. The torque is in the direction of the angular velocity which would be produced by it in the absence of other influences. In general, the change in angular velocity is in the direction of the torque.
How do you calculate the electric field of a magnetic field?
F = q (E + v × B). The electric displacement D and magnetic intensity H are related to the electric field and magnetic flux density by the constitutive relations: D = ε E, B = µ H.
What is the density of magnetic field?
magnetic fields The energy density in a magnetic field is given in the absence of matter by 1/2B2/μ0; it is measured in units of joules per cubic metre. The total magnetic energy can be obtained by integrating the energy density over all space. The direction of the magnetic…
How do you calculate torque from RPM?
- Torque (lb.in) = 63,025 x Power (HP) / Speed (RPM)
- Power (HP) = Torque (lb.in) x Speed (RPM) / 63,025.
- Torque (N.m) = 9.5488 x Power (kW) / Speed (RPM)
- Power (kW) = Torque (N.m) x Speed (RPM) / 9.5488.
Can an electric current be generated at 1 rpm?
An electric current can be generated at 1 or even slower rpm. However it would not be enough to do any serious work. Generators of various sizes produce usable amprage and are designed for various rpms. Most require a minimum of at least 50 rpm with others spinning as high as 10.000.
How do you find the magnetic force of a magnet?
v =qv×Bv The magnetic force exerted on a charge q moving with velocity v in a magnetic field B. This equation actually defines the magnetic B-field. Visualizing a M. Field: Field lines
What is the difference between electric and magnetic field?
Magnetic Field. Electric field : 1) A distribution of electric charge at rest creates an electric field E in the surrounding space. 2) The electric field exerts a force F E = q E on any other charges in presence of that field. Magnetic field: 1) A moving charge or current creates a magnetic field in the surrounding space (in addition to E).
How does a magnet interact with a moving charge?
Magnetic Field. Interaction of magnetic force and charge – The moving charge interacts with the fixed magnet. The force between them is at a maximum when the velocity of the charge is perpendicular to the magnetic field.