Recent content by kahwawashay1

"unity" means just plain regular "1"? Im not sure whether this is a physics or math question, but in many physics problems, instead of saying "1", the problem will say "unity", like "the sine of theta is unity" or the "index of refraction is unity". I am assuming "unity" means just plain...

thank you! :D

But I am saying let the wire and battery be ideal with no resistance. And I'm actually not really asking about what the capacitor sees and how it charges, I'm just asking is there any current through the resistance if it is connected in parallel with a capacitor, with resistanceless battery and...

But you're describing formulas for a capacitor and resistor in series...I'm talking about a capacitor and resistor in parallel...

I know how capacitor charges. My question is that while it is charging, would some of the current still go through the resistor connected in parallel to it

Actually I am more confused with this water analogy now, as I don't think it fully carries over to electricity? Because I just found a problem in my book, not with a capacitor, but with a resistor connected in parallel with a resistanceless wire and battery. The solution was that none of the...

Well with resistance, q = Q(1-e^(-t/τ)) where τ is RC so the current will be the derivative of that with respect to time Without resistance, the charge on the capacitor would appear instantaneously Either way, once fully charged, there would be no current.. So then all of the current...

I think some of it would flow to the small pipe and some to the empty tank, until the tank became full, and then more would begin to flow through the small pipe and none to the tank...so then you are saying that at the beginning, some current would flow through both the resistor and to the...

Well I know that for a resistor and capacitor in series, the circuit gradually reaches final values, but in parallel, idk? My physics teacher at first was saying that when in parallel, the resistor acts as a broken wire. If that is true, then yes, the state of the circuit is identical at the...

problem: switch of LR circuit is closed at time = 0; what is ratio of inductor's self-induced emf ( E(L) ) to battery's emf ( E(bat) ) at t = 2τ? my solution: switch is closed so current begins to build up according to equation: i = (E(bat)/R) (1-e^(-t/τ) ) multiplying R on both sides and...

My physics teacher said the other day that, if you connect a capacitor and resistor in parallel with a battery, no current will go through the resistor, since the current doesn't like resistance and so will follow path of least resistance (to the capacitor). But then the next day, I think he...

Ohhhhh thank you I get it now!

You guys are not reading my initial message right. I understand that all of the rays end up on the focal PLANE. But my book says that "all rays that are parallel to one another" converge "to the same POINT on its focal plane"

My book says that "One property of a converging lens is that it focuses all rays that are parallel to one another to the same point on its focal plane". But isn't that wrong? I mean, don't the rays have to be parallel to the central axis through the lens, not just to one another? In any...

The path difference would then decrease. My solution was: dsinθ = (m+0.5)λ x2+d2 = (x + dsinθ)2 Combining these two equations and solving for x gives x = \frac{d^{2}-\lambda^{2}(m+0.5)^{2}}{2λ(m+0.5)} (where d is the distance between the points emitting the light, dsinθ is path difference...