Hey there! We receieved your request
Stay Tuned as we are going to contact you within 1 Hour
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-5470-145
+91 7353221155
Use Coupon: CART20 and get 20% off on all online Study Material
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
OTP to be sent to Change
In H.C Vermas concepts of physics vol-2 in the page.no.106 in Example 29.1, what is the rule behind taking E=Eacos@ + Ebcos@ ????
Why cant sin@ be taken instead of cos@ ???
Pls...help Pls i will approve the ans anyway help me aieee approaching n givin me the spine chills !!!
Vikas waiting 4 ur reply !!! i know u knw this come on help me pls.....
electric field is a vector quantity so it can be broken into components ,
Ea is electric field by charge which is placed at vertex A
Eb is electric field by charge which is placed at vertex B
now , Ea & Eb both can be divided into two components ,
for Ea two components are Eacos@ & Easin@
for Eb two components are Ebcos@ & Ebsin@
now , it is clear that Eb sin@ is in opposite direction to Easin@ so they will cancel the effect of each other but
on other side Eacos@ & Ebcos@ are acting olong same direction so they will be add up to give total
electric field E = Eacos@ + Ebcos@
instead of all these one other method can be used for this particular problem , see both charges are of same magnitude
but opposite sign so this system will behave as a dipole & for this we can use direct formula
E(equitorial) = kp/(a2+x2)3/2
here p(dipole moment) = q(2a)
x = perpendicular distance
2a is distance bw charges
drop a pependicular from PEa to PE now in triangle PEEa
cos@=E/Ea
=> Ea=E cos@
similarly Eb=E cos@
there is no rule behind its just d simple trigonometry
tejaswi
Get your questions answered by the expert for free
You will get reply from our expert in sometime.
We will notify you when Our expert answers your question. To View your Question
Win Gift vouchers upto Rs 500/-
Register Yourself for a FREE Demo Class by Top IITians & Medical Experts Today !