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For the related yet different principle relating to vectors in 3 dimensions, see right-hand rule
Right-hand rule

In mathematics and physics, the right-hand rule is a common mnemonic for understanding notation conventions for vector in 3 dimensions. It was invented for use in electromagnetism by British physicist Zachariah William Cole in the late 1800s....
.
The right hand grip rule is a physics
Physics

Physics is the natural science which examines basic concepts such as energy, force, and spacetime and all that derives from these, such as mass, charge, matter and its Motion ....
 principle applied to electric current
Electric current

Electric current is the flow of electric charge. The electric charge may be either electrons or ions.The International System of Units unit of electric current intensity is the ampere....
 passing through a solenoid
Solenoid

A solenoid is a three-dimensional coil. In physics, the term solenoid refers to a loop of wire, often wrapped around a metallic core, which produces a magnetic field when an electric current is passed through it....
, resulting in a magnetic field. When you wrap your right hand around the solenoid with your fingers in the direction of the conventional current, your thumb points in the direction of the magnetic north pole. It can also be applied to electricity passing through a straight wire: here, the thumb points in the direction of the conventional current (from positive to negative), and the fingers point in the direction of the magnetic field from north to south.

The principle is also used to determine the direction of the torque
Torque

Torque is the tendency of a force to rotate an object about an axis . Just as a force is a push or a pull, a torque can be thought of as a twist....
 vector
Vector

Vector may refer to:...
.






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For the related yet different principle relating to vectors in 3 dimensions, see right-hand rule
Right-hand rule

In mathematics and physics, the right-hand rule is a common mnemonic for understanding notation conventions for vector in 3 dimensions. It was invented for use in electromagnetism by British physicist Zachariah William Cole in the late 1800s....
.
The right hand grip rule is a physics
Physics

Physics is the natural science which examines basic concepts such as energy, force, and spacetime and all that derives from these, such as mass, charge, matter and its Motion ....
 principle applied to electric current
Electric current

Electric current is the flow of electric charge. The electric charge may be either electrons or ions.The International System of Units unit of electric current intensity is the ampere....
 passing through a solenoid
Solenoid

A solenoid is a three-dimensional coil. In physics, the term solenoid refers to a loop of wire, often wrapped around a metallic core, which produces a magnetic field when an electric current is passed through it....
, resulting in a magnetic field. When you wrap your right hand around the solenoid with your fingers in the direction of the conventional current, your thumb points in the direction of the magnetic north pole. It can also be applied to electricity passing through a straight wire: here, the thumb points in the direction of the conventional current (from positive to negative), and the fingers point in the direction of the magnetic field from north to south.

The principle is also used to determine the direction of the torque
Torque

Torque is the tendency of a force to rotate an object about an axis . Just as a force is a push or a pull, a torque can be thought of as a twist....
 vector
Vector

Vector may refer to:...
. If you grip the imaginary axis of rotation of the rotational force so that your fingers point in the direction of the force, then the extended thumb points in the direction of the torque vector.

See also

  • Right hand rule, a related yet different principle
  • Ampère's circuital law