Recent content by arun babu

thanks arildno...i viewed the above linked and learned that when very smooth surfaces are brought together in vacuum they adhere very strongly to each other...but it is due to van der waals forces right?k...this may be a silly question...but does van der waals forces come under electromagnetism...

does friction in any way increase when the surfaces get very smooth ...? a teacher told us that it can increase due to electromagnetism...is it true...i searched the net but couldn't get any useful info...

thank you m.s.j. could you please explain how generator fault current arises?

i am sorry to say that i have no info on the topic...it is a part of our material science syllabi...but is not present in any texts i have looked into...

i have learned that it is concerned with the induced current in damper winding and field winding of synchronous machines..which is divided into transient period and sub transient periods

please explain abt amorphous and organic semiconductors...their properties ...nature of classification ...examples..etc..

oops...that was not what i was looking for...anyways thanks for the info..in fact i hope to get a very down to Earth and easy to understand explanation on the said topic ie transient and sub transient reactance of alternators...

please explain the transient and subtransient reactance of synchronous machines