Recent content by BeautifulLight

This is my schematic of a POT, power source, and load. What's with the mediocre illustration of a POT? That's not the schematic symbol... I know. I will explain. In my initial post, I mentioned that you could figure out the maximum amount of current a chemical battery can deliver using the...

This thread will concern the workings of potentiometers, but I could use some help tackling something first. I will explain in my next post! Assume I have shorted out a battery with some resistor. I always thought that if you had a high enough resistor value, you could stop current from...

Simply by observing the particle's displacement over time along the curve. Differentiate and measure the slope. If it's zero, then you know the particle is accelerating uniformly. There are a few things that bother me though. What if I only differentiate the particle's displacement over time...

In this case, it is perfectly accurate because f(x)=√x is a smooth function. Consider f(x)=x^2 I want to find the instantaneous velocity when x=7 So, f(7)=7^2 f(7)=49 (7,49) This is B, which will be my midpoint. I went 2 units to both the left and the right of my midpoint to get my two...

I was under the impression that you needed Calculus to find the instantaneous velocity at a point when dealing with non-linear functions. I'm near positive that statement is false or at least only partially correct. f(x)=√x is a non-linear function, but the "line" (or curve?) is accelerating...

Assuming like wires i.e. composed of same material, gauge, etc. A conducting length of Cu may be shorter than another conducting length of Ag, but that doesn't mean that it is less resistive. Your point is clear. I'm just trying to refine mine.It shouldn't make a difference. If I parallel light...

Are you asking me what would happen if I were to parallel two light bulbs of unequal resistance (let's say 100 ohms & 200 ohms)? Higher wattage bulb = brighter light bulb The 100 ohm light bulb will be consuming .09 Watts while the 200 ohm light bulb will only be consuming .045 Watts. The...

Her instructor posted the correct answers. It's actually "disagree". When you disconnect one of the light bulbs in a two-bulb series circuit, you now have a break in the circuit, and the brightness of the remaining bulb is 0 (no current can flow). In the parallel scenario, it won't make any...

Homework Statement Hey guys, this is actually a question from my roommate's homework. She gave her response and I figured I'd check it over. I have some questions too! Consider the following statement made by a physics 480 student while pondering the fact that two bulbs connected in series...

meBigGuy, if you were to record your favorite song and play it back, would you agree that the microphone would spit out the exact words you sang into it? I think so. Speaking of the source of the signal alone, it's almost as if your voice and the microphone are interchangeable, right? This is...

I was suggesting the cap instead of the inductor as a low-pass filter...to save money. I knew that couldn't be right though (substituting a series inductor with a parallelled capacitor) otherwise everyone would be doing it, and I've never seen it done before. There are certainly holes in my...

The 100hz crossover point is for my woofer. The 500uF capacitors are for my full ranges. The full ranges I have in my possession are a set of Aurasound ns-3's. These Aura's + the 500uF capacitors are called Wolf's PC Speakers. It's a simple design from a member on diyaudio. I already had the...

Amp: 2 x 20 Watts RMS Extended/full range speakers: 8 ohms each (single voice coil or SVC for short)The manual that came with my amplifier didn't specify whether or not that 2 x 20 Watts figure was at 4 or 8 ohms. I assume 4 ohms as it'd make a good selling point (20 x 2 at 4 ohms sounds better...

1st order crossover desired low-pass frequency: 100hz At 8 ohms, that'd be about 12mH. But what happens with a DVC speaker? Each coil get a 12mH inductor? I'd like to think so... Speaker is 8+8 ohms and will be parallelled to a set of 8 ohm extended range speakers showing my amplifier 4 ohms...

I created this thread because I wanted to make a voice coil with a specific ohm rating so I wouldn't damage my amplifier. Every speaker has one. You often see it listed on or near the terminals of the speaker or the manufacturer has it stamped on the bottom of the magnet. Could be 2, 4, 8, or...