In this topic you study, the between brake and dynamometer.
| Brakes | Dynamometers |
| It works on the principle of conversion of kinetic energy ¡nto heat, which is dissipated to the surrounding. | It works on the principle that, the power measured ¡s converted into heat by frictional resistance. |
| It is used to retard or stop the vehicle. | It is used to measure force, torque or power. |
| It offers frictional resistance to the moving body, so as to bring the body to rest. | It is able to measure frictional resistance, which is measure of power. |
| Applications: Vehicles, lifts etc. | Applications: Engine testing. |
| Examples: Block brake, band brake, internal expanding shoe brake, hydraulic brake system etc | Examples: Rope brake dynamometer, hydraulic dynamometer, eddy current dynamometer etc |