I don't need basics, I know the causes how xenon flash "works" ; I need to know how do they minimise this kind of circuit in microprocessor?
My question: The Flash tubes require kVs of potential difference to work. I am aware that big capacitors are required to make them work. This is okay...
The motive was to find the tangent.. But I cant seem to find it.. when I plot the graph to this yperbola, I just CANT figure out how to proceed! HELP!
PS: This question was in exams today.. If the question is missing some info, please mention -.-
I was trying to solve this one, but couldnt come up with any way to start.
In 1959 Lyttleton and Bondi suggested that the expansion of the Universe could be explained if matter carried a net charge. Suppose that the Universe is made up of hydrogen atoms with a number density N, which is...
Thanks for reply. Yes I understand what you meant. Can you suggest some good method for this problem?
Let P1(x) = ax2 − bx − c,
P2(x) = bx2 − cx − a,
P3(x) = cx2 − ax − b
be three quadratic
polynomials where a, b, c are non-zero real numbers. Suppose there exists a real number
α such...
quadratic problem. any other method??
1. Thie problem statement, all variables and given/known data
I was solving this question paper and came across the second problem :
http://olympiads.hbcse.tifr.res.in/uploads/rmo-2010 [Broken]
I wanted to solve this one by calculus.
I want to know...
Yeah this is obviously much better, I was just looking whether it is even possible or not as none of the books I use has such question.
Would be awesome if you could suggest some good book for complex number (pre collage).
1. I actually dont know if such kind of operation is even allowed.
A friend of mine raised this question, that can we raise a complex power over a real number. I solved it this way. Is this correct?
http://i45.tinypic.com/254vwux.jpg
Homework Statement
Homework Equations
The Attempt at...
1. The question is to find the volume charge density. Given is non uniform, but spherically symmetric electric field, E=K.r4, K being a constant. Original question can be viewed in image:
* Question no. 53
Homework Equations
Answer is: ρ=6Kr3ε
The Attempt at a Solution...
Really!? :shy: Then I think I am going in correct way!
Thank you ehild for the help. :redface:
I'll be posting some other questions as I proceed in the chapter. Would love to ask help again :) :approve:
I have this thing in my mind:
PE of system is PE due to interaction between individual charges.
Now, if -q coincides with either 2q or 8q, the resultant PE would be -∞.
Any finite value (in this case interaction between 2q and 8q) when added to -∞ will be equal to -∞.
And since the...
I guess minus infinity.. Since PE is scaler, we need to put sign in the expression.. And this would lead to negative side of infinity as far as mathematics is concerned..
Answer is, as i have mentioned, D. None of these.
Problem is I cant figure out if my method is even correct.
I am on my summer vocations, so cant get to my instructor for directions.
If some good guy greg here tell me which method he would use i would appreciate it! :-)
Here is my full working for the initial part. Got same expression each time I did the question.
http:// i46.tinypic . com/33w9s92.jpg
PS: I cant post links, because I havent reached 10 posts yet.
Homework Statement
Two point charges 2q and 8q are placed at a distance r apart. Where should a third charge -q be placed between them so that the electrical potential energy of the system is minimum.
a). at a distance r/3 from 2q
b). at a distance 2r/3 from 2q
c). at a distance r/16 from 2q...
Yes, that Exactly is the problem i am facing.. I have added picture of my notebook. My teacher had given only that much data... And I think from this data we should assume that path was straight line from (0,0) to (3,4)
1. F= 5y i + 6x j (in component form) Find the work done in displacing from (0,0) to (3,4)
2. W= ∫F ds
in this case, W= ∫5y dx + ∫6x dy With lower limits 0,0 And upper Limit 3,4
3. Now My question, how do i integrate when variables are different?