President Woodrow Wilson signed the Federal Reserve Act on December 23, 1913. The Act established the Federal Reserve System to oversee the nationâs money supply and provide an âelasticâ currency that could expand and contract in response to the economyâs changing demand for money and credit.ince the creation of the Federal Reserve, other pieces of legislation have shaped the structure and operation of the nationâs central bank. Following the Great Depression, Congress passed the Banking Act of 1935, which established the Federal Open Market Committee (FOMC) as the Fedâs monetary policymaking body.
The purpose of carbon brushes is to reduce wear on the commutator, compared with what metal brushes would do. In many cases, carbon brushes can be made long enough that they will not wear out while a device would otherwise be usable; when they do wear out, they can be readily replaced.
A common single-phase motor is the shaded-pole motor and is used in devices requiring low starting torque, such as electric fans, small pumps, or small household appliances. In this motor, small single-turn copper shading coils create the moving magnetic field.Part of each pole is encircled by a copper coil or strap; the induced current in the strap opposes the change of flux through the coil.n this motor, small single-turn copper shading coils create the moving magnetic field. Part of each pole is encircled by a copper coil or strap; the induced current in the strap opposes the change of flux through the coil.