maths

kc sinha is mind blowing really great ad gupta essential later tmh

phy

 for cocepts any text bok will do  (abc is good)hcverma essential

chem

any text book then rcm

good

i was also comp. oriented since bachpan

but  at this age i did v. good books of my level only

eg. hcverma  and all bharti bhawan and mtg stuff

dont worry for iit 2yrs are enough

these years tdevelop skills and logics

go for nstse olympiads etc

best of luck

me too following same strategy

but my jee syllabus will be completed( a guta and hcverma especially and rcm) by july first week except organic chem

course comp jaldi karna brings confidence

i am doing this since junior classes.

eq resistace ofeach triangle for four triangles (leaving trangle of b)is 2r/3

now 2 such resistaces add becase they in sereis

it become like this

                      

                              4r/3                r

                     a---                r    

 

                                 4r/3                r

this is a wheastone bridge

soreq=(7r/3)²/(14r/3)

=7r/6

rite!!!!!!!!!!1

nudge me

first option

becoz motion is circular so force is towards center

initial PE=0  (no force on each other )

final pe=change in PE=k q1q2/r=36/10 x100=360j

hi

constrains really need a good practice

also DC PANDEY (old edition of 2005-06) is besssssssssssssssssst for understanding cons.

 

ans

f net =mw²r-mw_o²r

      =mr(w²-w_o²)

q10

 not too long but needs diagrammatic explanation

i dont know how to post figures tell me and i will reply