Dyne-centimeter (dyne·cm) is a unit of torque, representing the rotational force applied to an object. It is part of the centimeter-gram-second (CGS) system of units.

In the dyne-centimeter unit:

    "Dyne" is the unit of force in the CGS system. One dyne is the force required to accelerate a one-gram mass by one centimeter per second squared (1 dyne=1 g⋅cm/s21dyne=1g⋅cm/s2).
    "Centimeter" (cm) is the distance from the axis at which the force is applied.

One dyne-centimeter of torque is the torque created by one dyne of force applied at a perpendicular distance of one centimeter from a pivot point.

The formula to calculate torque (τ) in dyne-centimeters is:
τ=F⋅dτ=F⋅d

Where:

τ is the torque,
F is the force in dynes,
d is the distance in centimeters from the axis at which the force is applied.

Example:

If you apply a force of 10 dynes at the end of a lever that is 5 centimeters long, the torque would be 50 dyne·cm (10 dyne * 5 cm).
Usage:

Dyne-centimeter is a relatively small unit of torque and is used in fields like physics and engineering, particularly when dealing with smaller scales and lighter forces, such as in the case of micro-mechanical systems.