What is field due to a semi infinite wire () at xy plane ? wire is on positive z axis. wire has inear charge density of . consider tr. 8) to be coordinates of c

answer is b

thank u sir

really helpful

hope you got it

and it's semi infinite bcoz we took limits of L form o to L not -L to +L

see this carefully

yes mam, i got it

they were given a negetive sign. is it wrong right??

i marked it

yes

there is no negative sign and one more why we use cylinder is here ..... it's just bcoz wire has cylindrical form

mam, but now chandradhawan sir sent me a solution

it includes negetive sign

let me check

see that solution carefully thats rod not wire

see this link

thank u

dear wait I'll send you exact solution

see my cmnt....

sir, i dont understand this solution

here the option given to be B

see next cmnt

dear see my next comment

sir, this is the solution for semiinfinite wire

here option given to be B

Question asked us to find field in x-y plane due to semi infinite wire, i found resultant E.F , you can neglect E.f in z direction and consider component only in x-y or r direction, because z doesn't lie in x-y plane. in that case D will be correct option.

let's talk about why b can't be an option , according to b e.f will be in positive z Direction where it is already given wire lie along positive z axis upto infinity, so E.F along any point on z can only be in negative Direction not positive.

yes dear it's really very important

mam, here option given to be B

can u show this

but still let me check

dear that solution refers for rod not for wore

wire