I recently gave my hand tools a bath in " right from the bottle" strength HCL. I had previously known about the naughty flash rusting that occurs, so to combat the rust, I quickly plunged the tool in water, gave it a quick wipe and then plunged it into extremely hot cooking oil.
The tools...
I have a 12V 10A power supply connected to the copper electrodes used for making copper sulfate.
After about 5 minutes, the mixture gets warm.
An ammeter connected in series only shows about .2A of current being drawn so I suspect that it is the huge restiveness of the acid,water mixture...
I had a solution of copper sulfate in (vinegar) and noticed that when I wire brushed certain metals, the copper made a beautiful arrangement on the work piece, often a perfect semi-gloss. The copper is also seemingly bonded to the metal ( can't wipe it off).
However, when I use conventional...
I found this motor at a thrift shop and got it for free. I wired it up and found that it pulls a surprising .45 Amps. It also generates an amazingly effective magnetic field around it. I am scared to touch it with both hands.
It seems to have a small transformer... Probably makes some mean...
( Buzzer sound )
The motor alone pulled .25A, the bulb by itself pulled .2A., and together they pull .17A
I confirm the resistance theory. But the law that states the current is the same throughout the circuit has me convinced that the motor is adjusting to keep the current the same...
A good way to test for correct AC is to split the wires going to a lamp, and use the V/I=R to confirm the reading.
This cheapy harbor freight deal works amazingly well.
By the way, for anybody who hasn't thought of it yet, I have included a diagram of a neat little fixture that I use to...
Thanks for the reply. I understand now. Although, I thought that motors produce a high initial current, and then taper off for a constant A draw? I noticed this when initiating the circuit.
My meter shows an initial current of ~.2A, once the motor increases speed the bulb dims, and the current...
I have included a diagram of this simple circuit I have constructed. When hooked up to the battery, the motor starts out slow, and then speeds up to a ~constant speed.
The bulb, however, starts out bright but immediately gets dimmer, almost to the point of no light being produced.
If...
How big of a battery would...
How big of a battery would it take to power the average sized home for 24 hours?
Considering basic kilowatt-hour consumption with AC. Would it even be possible to power a home off a DC source?
I would hypothesize that you would have to change all of your...
I have a 2.5hp treadmill DC motor and would like to hook up a controller to it.
Are there any products out in circulation that would have this built into them for a salvaging attempt, or maybe a dirt cheap alternative?
Heck, I would even love to make one myself if I could.
I was piddling with my meter and graphing calculator and came up with this equation
y= .08x+.14
This equation uses the number of batteries for X, and the Amp draw through a light bulb for Y.
The results are theoretical past 4 batteries.
The batteries were 1.29 v when the experiment began...
Is it possible to damage the continuity tester if the leads are hooked to a battery?
For a clamp on AC amp meter; Is it possible to damage the sensor if put around a DC hot wire in a circuit?
I am so surprised it is difficult to find events of people damaging their meters. God knows the...
Ohhh. I see. So the reading I am getting is commutator touching the coils of wire?
I am a spring chicken when it comes to electronics. I am currently taking an AC/DC course at my technical school. So excuse my Newbie sense of direction.