Seeing your recent threads, I guess it's GATE 2018??jaus tail said:
The external characteristics of a DC generator refer to the properties and behaviors of the generator that can be observed from its physical structure and operation. These include the output voltage, current, and resistance.
The external characteristics of a DC generator play a crucial role in determining its overall performance. For example, the output voltage and current will determine the power output of the generator, while the resistance will affect its efficiency and stability.
The external characteristics of a DC generator are a direct result of its internal components and design. The type and arrangement of the generator's windings, magnetic field, and commutator all contribute to its external characteristics.
The external characteristics of a DC generator can be controlled by changing the generator's field excitation, load resistance, or speed. This can be done manually or through the use of automatic voltage regulators.
While both DC and AC generators have similar external characteristics such as voltage and current, their internal designs and operation are quite different. DC generators use a commutator and split-ring design, while AC generators use slip rings and a rotating magnetic field. Additionally, AC generators produce alternating current, while DC generators produce direct current.
