| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 5 Mar 2008 18:51:34 IST
|
|
|
if the self inductance of an aircored inductor increases frm 0.01 to 10mH
on intro iron core what is relative permiability of core used?
2) whats AnGULar ApertURE of compound microscope??
numerical ok.. but angular?
|
" From ashes a fire shall be woken From shadows a light shall spring " ---Tolkien
" Throughout the centuries there were men who took first steps down new roads armed with nothing but their own vision. " --- Ayn Rand
|
|
|
|
5 Mar 2008 23:13:35 IST
|
|
|
pls ............. FAst............urgent.........
|
" From ashes a fire shall be woken From shadows a light shall spring " ---Tolkien
" Throughout the centuries there were men who took first steps down new roads armed with nothing but their own vision. " --- Ayn Rand
|
this reply: 0 points
(with 0 
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
5 Mar 2008 23:25:05 IST
|
|
|
i guess d ans is 10^3......
|
"Many of the things you can count,dont count....
Many of the things you cant count,really do count...."-Albert Einstein
"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them"-William Bragg
"An inexplicable fact is infinitely preferable to an incomprehensible mystery"-F. Soddy
RISHIPRATIM MAZUMDAR
NIT DURGAPUR
1ST YEAR,ELECTRONICS AND COMMUNICATIONS
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
5 Mar 2008 23:26:19 IST
|
|
|
reason....
|
" From ashes a fire shall be woken From shadows a light shall spring " ---Tolkien
" Throughout the centuries there were men who took first steps down new roads armed with nothing but their own vision. " --- Ayn Rand
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
5 Mar 2008 23:33:36 IST
|
|
|
coefficient of self inductnc is directly prop 2 the permeability of the medium......
and rel. perm. is the ratio b/w the abs perm. of d medium to perm of air.....
so,as all other factors remain const.,the only chng in inductnc shud b due 2 the chng in permeability of the medium....
so, as the slf inductnc increases by a factor of 1000,dat means the rel. permeability of d medium shud b 1000 times dat of air.....
|
"Many of the things you can count,dont count....
Many of the things you cant count,really do count...."-Albert Einstein
"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them"-William Bragg
"An inexplicable fact is infinitely preferable to an incomprehensible mystery"-F. Soddy
RISHIPRATIM MAZUMDAR
NIT DURGAPUR
1ST YEAR,ELECTRONICS AND COMMUNICATIONS
|
this reply: 5 points
(with 1
in 1 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
|
|
Moderation Team
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
