Recent content by TwinCamGTS

Hi guys, Sorry if all you guys think this question is too easy. But I have a hard time to understand how to group the resistor. I suppose to find the the thevenin and Norton equivalent circuit. This is what i think about the combination of resistor. Req1= RL+1k Req2= Req1 ll 3.3k (3.3k after...

thanks guys... apparently the answer is current is reaching zero after sometimes. and somehow we need to do the derivative. but i didnot do that, i just plug in the number lucky guess

Homework Statement Two capacitors (C1 = 9.3 μF and C2 = 29 μF) are connected in parallel across a 12 V battery. a) Find the equivalent capacitance of the two capacitors. Ceq=C1+C2=9.3+29=38.3μF After some time has passed (use for rest of problem): b) How much current flows in this...

i could not get it right, its alright. i'll just look at my teacher's answer key. thanks for helping me

here is how i do it. can you tell me where do i get it wrong? thanks

I use they way you described to solve it. I got 17 lights bulb needed to being the power down to 50% from its actual power. But its wrong. Just wondering, do you try to solve it and do you get the same result? Or maybe i did it wrong. I can't post my work coz I am at work and i can't attach the...

hi guys, i just re-edit the problem. sorry for the confusion because at first i just need the concept of how to solve the last problem which is to find how many light bulbs need to be added to the circuit on parallel so that the power output will be ____% from its actual value. thank you for...

Homework Statement In the figure below, you will attach one or more light bulbs of R=30.12 Ω in parallel with the battery (with ε = 20 V, internal resistance r). (i will upload with work and the picture of the wiring diagram) a.) For an ideal battery (r=0), what would be power...

I finally got it right. Apparently i was stupid to cross out the value during the integration just because they set the V=0 at r=3R. so i ended up get everything wrong. thank you for your help :D i appreaciate it

i got it, thanks...so the density charge gets higher as the radius get bigger. so i integrated the parts Qenc = ∫(A*r^2)2∏*r*H*dr r=Radius of gauss put into the gauss law EA=Qenclosed/εo E(2∏*r*H)=(∫(A*r^2)2∏*r*H*dr)/εo rearrange everything and cancel some of the...

i don't know what to do. I just do the easiest thing first, which is find the voltage V at r=R based on the integration, i have 2 answers. either 711.864 (integrated from r=0 to r=R) or 4005.527 (integrated from r=3R to r=R) i put down either answer, and its wrong... i find out that its...

Homework Statement a neutral conductor has a hollow cavity within it. When a point charge q = +6.3 nC is placed into this cavity How much charge will be found on each surface of the conductor? inner: -6.3 nC (negative charge being attracted by the positive charge that being put in the...

like ∫(Ar^2)*r*dr = A∫r^3*dr then plug everything back to the original equation?

yeah, that's what i thought but the webassign said my answer is wrong, so i wonder what is the way to do it then? so you say the method I am doing it is correct isn't it? Or is be because the equation that i use is wrong? when r=R, do i use equation of r gauss < R cylinder or r gauss > R...

Homework Statement A very long solid cylinder of radius R = 4.2 cm has a non-uniform volume charge density along its radial dimension, given by the function ρ = Ar2, where A = +2.2 µC/m5. a)How much total charge is contained on a 1 m length of this cylinder? b)Outside: What is the...