sign up I login
 advanced
refer a friend - earn nickels!!

Ask & Discuss Questions with Community & Experts

Moderation Team
 90 chars left    advanced
Ask iit jee aieee pet cbse icse state board experts Expert Question: 486 veiws no answer-electrostats reason assertion
Forum Index -> Electricity like the article? email it to a friend.  
Author Message
magiclko (4205)

Forum Expert Moderator

Olaaa!! Perrrfect answer. 745  bad job dude!! I dont approve of this answer! 2  [989 rates]

magiclko's Avatar

total posts: 1940    
offline Offline
due to the charge q placed in the shell, redistribution of charges will take place . - q will appear on inner surface of shell and on outer surface +q . Now , if u apply gauss law to find E at a point , now also the charge enclosed will be q . so , there will be electric field . So , assertion is wrong !!!

Manasi....
NIT-Allahabad...

............................................................
Challenges are High, Dreams r New..
The World out thr is waiting for U !!
Dare to dream, Dare to Try..
No Goal is distant, no Star is too high !!!
 this reply: 0 points  (with Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
neeraj_agarwal_1990 (914)

Blazing goIITian

Olaaa!! Perrrfect answer. 140  [247 rates]

neeraj_agarwal_1990's Avatar

total posts: 2039    
offline Offline
E at a point OUTSIDE the conductor will be zero as the enclosed charge is Q...
but inside the conductor...gaussiun syrface is considered through the conductor...whose enclosed charge is 0...and field b/w the inner and outer surfaces is 0 while there is field inside the cavity...
 this reply: 0 points  (with Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
vish0001 (493)

Blazing goIITian

Olaaa!! Perrrfect answer. 79  bad job dude!! I dont approve of this answer! 2  [132 rates]

vish0001's Avatar

total posts: 1347    
offline Offline
yup totally agree with neeraj



 this reply: 0 points  (with Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
magiclko (4205)

Forum Expert Moderator

Olaaa!! Perrrfect answer. 745  bad job dude!! I dont approve of this answer! 2  [989 rates]

magiclko's Avatar

total posts: 1940    
offline Offline
in case the point is inside the conductor then thr will be no NET electric field as charge enclosed will be 0... but still defintely electric field lines will exist, but since they will be two opposite charges, they will nullify each other...

Manasi....
NIT-Allahabad...

............................................................
Challenges are High, Dreams r New..
The World out thr is waiting for U !!
Dare to dream, Dare to Try..
No Goal is distant, no Star is too high !!!
 this reply: 0 points  (with Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
neeraj_agarwal_1990 (914)

Blazing goIITian

Olaaa!! Perrrfect answer. 140  [247 rates]

neeraj_agarwal_1990's Avatar

total posts: 2039    
offline Offline
Since there can't be electric field inside a conductor...THEREFORE..on applying gauss law for a surface passing through the conductor...
Since lhs of gauss law is 0..so rhs should also be 0 ...so a -q is induced on the inner surface...but the charge on the conductor has to be 0...so a +q is induced at the outer surface...
the field lines of the +q which was initially placed emerge radially outwards and END at the innere surface of the shell(at -q)

 this reply: 0 points  (with Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
umang (229)

Blazing goIITian

Olaaa!! Perrrfect answer. 35  [62 rates]

umang's Avatar

total posts: 873    
offline Offline
I asked this que. to my teacher and got a satisfactory reply  -
E inside the conducting material is zero . It is zero inside the hollow conductor only when the charge enclosed is zero . And simply , just apply gauss laws and u get E = non zero . I had given this answer , but others confused me by saying E inside conductor is zero .
 
I hope u all agree with my solution !!!!!!

Umang
 this reply: 0 points  (with Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
ankur.kkhurana (908)

Blazing goIITian

Olaaa!! Perrrfect answer. 156  bad job dude!! I dont approve of this answer! 1  [222 rates]

ankur.kkhurana's Avatar

total posts: 1013    
offline Offline
umang yaar main kab kah raha hoonki tum theek nahi ho but main kah raha hoon e =0 in body of conductor not in cavity .

adversities cause some men to break other to break records............i m of the other type....... :-)
 this reply: 0 points  (with Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
umang (229)

Blazing goIITian

Olaaa!! Perrrfect answer. 35  [62 rates]

umang's Avatar

total posts: 873    
offline Offline
Hey ankur !
yes , u r right !!
U just see , it was a very easy question and still it took so long to get an answer !!!!!
It proves that we hav a lot more to learn !!!

Umang
 this reply: 0 points  (with Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
 
Forum Index -> Electricity
Go to:   

Top Offers for goIITians
Correspondence Courses
Brilliant Tutorials
Narayana Institute
Aakash Institute
Classroom/Crash Courses
Narayana - Kota , Delhi , Others
Brilliant Tutorials - Class , Crash
Aakash Institute - Medical , Engg
Online Test Series
Brilliant Tutorials
Narayana Institute
Aakash Institute
Mahesh Tutorials
AMITY      Sri Chaitanya