Recent content by shrabastee

Can I find specific values for p and q? Or does any value of p and q that satisfies the equations q-p=1 qualify as a solution? p and q have no restrictions in this case, they've asked us to ignore the "lies between 0 and 1" condition.

No I didn't :( Augmented matrices confuse me too much. :(

So how many solutions does the system have? If p and q lie between 0 and 1 it has one solution, does it? Which I can find by solving them simultaneously. And, they'll have no solution if the ratio of the coefficients of the variables is equal. Is that it?

So the system has infinite solutions, right? Since x+y=1 is the only equation we are left with, once we add the first two? But what about the second part? When will the system have no solution?

Okay, thanks :)

Homework Statement (q-1)x+py=0 (1-q)x-py=0 x+y=1 In this linear equation system: a. if p and q lie between 0 and 1 how many solutions does this system have and why? b. Ignoring the above condition, find the values of p and q so that the system has NO solution.Homework Equations Umm.. The...

Thanks! Are you sure my solution's right, though? Because this is a college problm and the solution I came up with seems a bit too simple. :P

1. Homework Statement In figure. (i1 and i2 are in the same direction. And the formula for field due to straight long wire is to be used.) 2. Homework Equations General magnetic field due to a straight long current at point P=μ0i/2πr(r=perpendicular distance between the conductor and...

Sign convention followed: In the direction of the current=positive Negative to positive plate=negative

Homework Statement We are to find I1, I2 and I3 in the diagram. Homework Equations These are the three equations I got. I need to know if they're correct. x=I1 y=I2 z=I3 12y-24+35x=0 35x+34z-18=0 x=y+z The Attempt at a Solution Values I got on solving: I1=0.508 I2=0.511...

Thanks! Just tell me one thing, can C3 be ignored because it carries no charge?

Homework Statement Finding the equivalent capacitance of the supplied circuit. Homework Equations For parallel capacitors, C EQ.=C1+C2+C3+.. For serial capacitors, 1/C EQ.=1/C1+1/C2+... The Attempt at a Solution The circuit simplification is difficult!

Thanks, but I think Gauss is valid for closed surfaces, isn't it? If it's a parallel plate capacitor it isn't really enclosing any charge is it?

Thanks! I did try looking them up before I posted, though :). Could you at least tell me if the guesses I made are correct, or on the right track? I'd much appreciate it. :) Also, the last question is freaking me out!

Here are a couple of questions I'm having trouble with. 1) Can a magnet have 3 poles? [Note: I've been told that a magnet might develop two north poles at the centre and two south poles at either end if it is faultily magnetised, but I'd much appreciate some explanation=)] 2) If the...