Explain functions of the commutator, Physics

Assignment Help:

Functions of the commutator: 

A commutator is a device, which under certain conditions changes ac into dc and vice versa.

The commutator is a form of rotating switch placed between the armature and external circuit and so arranged that it reverses the links to the external circuits at the instant of every reversal of the current in the armature coil. Thus it changes induced alternating currents in armature coils into direct currents in the external load circuits.

 


Related Discussions:- Explain functions of the commutator

Define strain, When deforming forces are applied to a body, there is a chan...

When deforming forces are applied to a body, there is a change in the size of the body. The object is known as strained or deformed. The ratio of change in dimension to the origina

Energy conservation, a compreesed spring is used to send a cart around circ...

a compreesed spring is used to send a cart around circular loop what is the friction

Is the q the source charge or else is it the test charge, Questions: A ...

Questions: A source charge generates an electric field to exist in the region of space around that source charge. The electric field exerts a force on some test charge that fin

Superconducting transition temperature, Q. What are the changes that take p...

Q. What are the changes that take place at the superconducting transition temperature? At the transition temperature the subsequent changes are observed (i) The electrical res

Explain about the double-crucible method, Explain about the double-crucible...

Explain about the double-crucible method. Low loss fibers are mostly manufactured by using double crucible and vapour phase deposition method. The double-crucible method is

Explain the working of transformers, Explain the working of Transformers ...

Explain the working of Transformers A transformer often uses a core, which looks like a square donut of iron, to change the voltage applied to the primary coil to a new larger

Explain the transmission of heat, Explain the Transmission of Heat Tran...

Explain the Transmission of Heat Transmission of heat (movement of heat from the hotter item to the colder item) can be brought about three ways: by conduction, convection, and

What is the average velocity of the balloon, The position-time graph for a ...

The position-time graph for a hot-air balloon that is in flight is shown in the accompanying figure.   a) What is the average velocity of the balloon? b) What is the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd