Tag: magnetic effects of electric current

A step down transformer is one in which the secondary coil has lesser number of turns in secondary coil than in primary coil.  Due to this the ratio of voltages in the coils is

A dynamo is an electrical generator that produces direct current or (Electromotive force) with the use of a commutator.

Dynamo is an electric generator where shaft is rotated mechanically and electric energy is produced. It converts the mechanical motion of the driven shaft into electrical motion,with the aid of a magnet.

The armature current will increase if the speed of the DC generator start decreasing due to an increase in voltage drop at armature resistance.

The main difference  between $A.C$ generator and $D.C$ generator is carbon brushes.

A starter (also self starter, self, or starter motor) is an electric motor, pneumatic motor, hydraulic motor, an internal-combustion engine in case of very large engines or other device used for rotating an internal-combustion engine so as to initiate the engine's operation under its own power.

A dynamo converts mechanical energy to electrical energy, producing a DC current, using a commutator.
A motor converts various type of energy like fossil fuel, steam an electrical energy to mechanical energy.
A transformer magnetically couples different electrical circuits.