1zabardasti manna padega
& wat about 8 isnt the loop ekpandig
1direction of field hi toh find karna hai... K kya hai ?
1
greatvishal swami
·2008-12-16 08:04:54
sry for 7 fnd mistake
only a
as radious of path=l & l-dl<l
1
skygirl
·2008-12-16 08:09:14
straight wire is getting attracted no doubt.
but how loop is getting contracted ?
16th one.. brigtness is reduced....
1
skygirl
·2008-12-16 08:25:18
yes got it... 7th one will indeed be a,b.
a is obvious...
but in B, l+dl>l so it will not move to the next section rather move a semicircular path...
this question was really nice :) (very prone to mistake... at least i felt so :P )
1
greatvishal swami
·2008-12-16 08:28:51
hey sky dats fine(7)
bt l<l+dl so y will it touch line l+dl
1
skygirl
·2008-12-16 08:36:13
arey its 'dl'..... very very small... it will jus have the space to turn around... dats it..
1
skygirl
·2008-12-16 18:04:23
yup it is expanding..
and
1. a.
(diipole moment = current(lXb))
1
skygirl
·2008-12-16 18:10:04
10. i always get confused in this. someone plz make it crystal clear to me.
33Sorry for 8 may be i drew sense of I as different :P
33
Abhishek Priyam
·2008-12-17 00:05:01
@ q no 2
i meant that only...
it was only 20 mins paper thats why....
33
Abhishek Priyam
·2008-12-17 00:06:06
in q 4 wires have current as shown in the fig
33
Abhishek Priyam
·2008-12-17 00:07:18
@ sky @ q. 10
Find dy/dx and dy/dt for a wave...
That will help :)
33
Abhishek Priyam
·2008-12-16 06:21:21
I'm posting the answers...
Made the questions long back so don't remember correctly but hopefully answers will be correct........
1- A
2- A
3- B
4- A
5- B
6- C
7- A,B
8- A,C
9- A,C
10- A,D
15- A
16- A
17- B
33
Abhishek Priyam
·2008-12-16 03:49:36
--------------------------------------------
33
Abhishek Priyam
·2008-12-16 03:51:09
___________________________
:)
62Wow.. this is like one full test for physics ;)
33
Abhishek Priyam
·2008-12-16 05:23:01
Now try........and don't laugh if some questions are too silly or wrong....
