Explain the construction of ‘Disc brake’ with neat sketch.

Modern vehicles always equipped with disc brakes on at least the front two wheels. It
consists of mainly 3 parts,
[1] Rotor
[2] Caliper
[3] Brake pads
In between each piston and disc, friction pad held in position by springs. Higher
applied forces can be used in disc brakes than in drum brakes, because the design of
the rotor is stronger than the design of the drum. Due to this, large resistance is
carried by flat disc. In this, Flat plate disc with flat friction pad are used against heavy
drum. Friction surface directly exposed to air cooling which results better (faster) heat
dissipation.