You should read jim's post carefully. His explanation is brilliant as he didn't rely on mathy explanations. Don't worry about Fourier analysis yet. You need a firm grasp of what the RMS is first.
To answer your question, no, rms values are scalars not vectors.
Jim touched on this but let me...
The two droplets would have a slight capacitance depending on how close together they are. Charge would build up on the sides closest to each other and create an attraction. The droplets would stretch out towards each other. How much they stretch and how much voltage it would take to split the...
That's fairly broad. There are plenty of kits that hobbyists can use to work with radio. A little Googling will lead you to page after page of them. Do you have a more specific question?
By the way, you can communicate wirelessly with radio waves, sound waves, and light. Light communication is...
You don't have to derive it with Fourier analysis but you can. Have you studied Calculus and the integral? I'm trying to think of a way to explain the root mean square and how it relates to DC and AC components of a signal without math but I'm at a loss.
The router simply has more Wifi range than your cell phone. I think you will find that other devices like laptops which have bigger Wifi modules than your cell phone will connect to your router at a greater distance.
yes
Idc is going to be a simple average of the function that defines your current. Did they give a formula for that or do you need to integrate to solve it? Irms is going to be Vrms/R. The formula for Vrms is given for a half rectified sine wave. You asked about it in one of your posts above. So...
RMS stands for root mean square and it is a special average of any periodic function that can be integrated. Wiki for RMS.
For your other qustion, let's say that we have I(t) = 5A + 5*sin(2*pi*t)A. The first term5A is obviously a DC current and 5*sin(2*pi*t)A is an AC current. It's common to...
You need good sound coupling to the water. When waves encounter a barrier where the material media changes properties there will be some reflection. It's doable but keep in mind that you'll lose some power from reflections off the water's surface.
If you put the bulb too close to the plant the heat will dry it out and kill it. That's a little wisdom from my high school experience of grow operations. Wait, I meant to say that a friend told me that would happen.
Hey, I found a nice pdf on LED's with some basic tables for LED colors. The color largely depends on the LED substrate material itself.
Check it out here
First you need to know the speed of the electrons. Applying a voltage to a free moving electron will impart kinetic energy to it.
E = V * e = 20kV * 1.6*10^-19 = 3.2*10^-15
and 1/2 * m v^2 = E
so v = (E*2/ m)^0.5 = 8.4*10^7 m/s
Note that I didn't factor in relativity. I'll leave...
You need an optical system that works for that wavelength. The infrared sensors in your remote control are big and it would be hard to get an image focused on an array of them.
You don't. My solid state professor told me that no one ever came up with an accurate model for this. He did his grad work on LED's.
What the industry did is to have grad students cook up thousands of batches with different dopants and concentrations. They then measured the spectrum of the...
One more thing. Be careful not to confuse units. In physics you can only add like units to each other.
All three of these are true:
EMF_total = EMF_ab + EMF_bb = EMF_ab + f(EMF_ab) all units are in Volts
PHI_total = PHI_ab + PHI_bb = PHI_ab + g(PHI_ab) this is the flux through the loop. Units...