Okay for the most part I understand the concepts involved but I'm having some trouble with this question.
The distance between an object and its upright image is 20.0 cm. If the magnification is 0.500, what is the focal length of the lens that is being used to form the image?
Now...
I'm confused on how to approach this question..
Show that the rms value for the sawtooth voltage shown in Figure 33.54 is Delta V_max / sqrt 3.
All Figure 33.54 shows is a graph of Delta V vs time with amplitudes of +Delta V_max and -Delta V_max with the sawtooth wave going between the...
I'm confused on this question. I would show my work, but I'm not sure on how to even approach the question. The book labels this problem as straight forward, but I still don't see it and I'm confused on which formula(s) to use..
A narrow white light beam is incident on a block of fused...
I see it now, I was approaching the problem the hard way. The reason I believe I was getting confused was I was trying to follow the current instead of just looking at the big picture.
If I would of reduced the middle and bottom resistors in parallel first then that equivalent resistance...
Okay, well it looks like I got the question wrong on the test and all the other questions that relied on those correct values.. :frown: I reduced the R1 and R2 in parallel and then that new one with R3 in parallel, which I kinda knew was wrong when seeing what the final numbers calculated were...
But the problem I'm having trouble grasping, is after say 20 A of current travels through R1 that 20 A won't travel through R2 due to the junction/split in the conductor will it?
Won't say 10 A go through R2 and 10 A go through R3? That's the reason I'm confused, because I thought that if...
Resistors in series and parallel (fixed)
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Can someone explain why this is a series - parallel circuit? I don't understand why when starting from...
Hmmm, well it looks like I got it wrong, which isn't good on a three question test.
Yeah I understand what was done, but got confused when it said the origin was involved.
Thanks for all the help.:smile:
A rod with a continuous charge extending from x=2.00m to x=3.00m has a charge density lambda=3x^2.
a.)What is the charge on the rod?
b.)What is the Electric potential of the rod at the origin?
c.)What is the Electric field at the origin.
This was a test question that I totally messed...
Oh okay yeah I see it. That was actually part B of the question, which asks to find the force on the 2e-6 C charge.
I'm getting that right now but how do I find the electric field at the 2e-6 C charge?
What I did was:
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E1 = [(K_e)(q)/(r^2)]...
I'm having trouble with this question. Where am I going wrong?
Three charges are at the corners of an equilateral trangle. The bottom left corner has a charge of 2.00e-6 C, bottom right -4.00e-6 C, and top with 7.00e-6 C and separated by 0.500m.
Calculate the electric field at the...