Magnetic Torque

Claimed by Demetria Hubbard--Dhubbard8 (talk) 15:02, 2 December 2015 (EST)

Magnetic torque is a phenomenon that occurs when the magnetic field produced causes a current-carrying wire to twist out of proportion.

The Main Idea

The idea behind this concept is that as the current flows through the wire and a magnetic field is produced. While this magnetic field is being produced, there is a force acting upon the wire causing it to twist. An example of this phenomenon is the movement of a compass needle by the Earth's magnetic field or hanging a coil near a bar magnet will cause it to twist in the direction of the magnetic field.

Asymmetric Magnet Torque

A Mathematical Model

Torque is created from the magnetic forces acting upon a coil.

This is the overall equation for determining magnetic torque.

Represents torque

is the dipole moment of the magnet

is the magnetic field created by the magnet (in units of Tesla)

A Computational Model

How do we visualize or predict using this topic. Consider embedding some vpython code here Teach hands-on with GlowScript

Examples

Torque on Current Carrying Loop

Simple

If there is a current-carrying wire with a magnetic field of 0.5 T and a dipole moment of 0.23, what is the torque produced on the wire?

Connectedness

Utilizing a compass is a basic survival need and it just so happens to depend on the torque produced by the Earth's magnetic field. As a Biology major, field work is a large part of what I do, especially studying ecological systems and different habitats. In order to navigate in unfamiliar locations, such as deserts and dense tropical forests, scientists rely heavily on basic survival skills and this includes the use of compasses and maps. Physics, biology, and chemistry make up part of the science family and each heavily depends on the other, this is why it is important to study each one to bridge the relationship.

See also

• Torque
• Magnetic Field
• Magnetic Force
• Bar magnet

Further reading

• Chabay, Ruth W., and Bruce A. Sherwood. Matter & Interactions. 3rd ed. Hoboken, NJ: Wiley, 2011. Print.

External links

Magnetic Torque

References

• Torque Example
• Chabay, Ruth W., and Bruce A. Sherwood. Matter & Interactions. 3rd ed. Hoboken, NJ: Wiley, 2011. Print.