Amy Winehouse

What is high current and low current?

I got the following results and I am not sure how to explain it. Does the results means as the length of nichrome wire increase the resistance increase? cuz in theory it should. Also if the ammeter said 3.1 does that means low resistance/current? Thanks.
Results:
Length of wire Average current
10 3.1A
15 2.46A
20 1.6A
25 1.4A
30 1.2A
35 1.0A
40 0.9A
45 0.8A
50 0.7A

where/how can i learn how to use cars diagnostic systems and digital multimeters?

i want to buy diagnostic system or digital multimeter, where or how could i learn how to use are there any not expensive ways how to learn it?

why barrier potential can not be measured externally with a voltmeter?

How many ohms does a multimeter read for a closed circuit, such as a good fuse or good wire?

Maytag Washer Check Switch?

Anyone know the details of why there is a check switch, in addition to a lid switch on my 1992 Maytag Washer? Seems like there’s a problem with it. If I check it with my voltmeter when the washer shuts off (during mid-cycle) there is no voltage. If I tap it with a screwdriver, the voltage returns and the cycle completes. I’m thinking of jumping it out but unsure what the extra leg/switch is for. Any guesses? Here’s the assembly and the bottom switch (labeled “check switch” in photo & what I tap): http://www.american-appliance.com/images/image_data/maywashlidswitch.jpg

sub sounds like its blown?

i hooked my sub up to a house sterio to just test and see if the sub was blown and i did i hooked up my 15 inch kicker solo baric l5 to a house radio and it sounds like complete a$$. idk if thats cause the woofers blown but i did a digital multimeter on the terminals on the subwoofer and the ohms are fine so that raised the question that maybe its not the sub but it sounds like shit because the sterio is underppowered by like 500 watts cause the rms of the sub is 750 and the output of the terminals on the radio i know are not anywhere over 200… what could this be?

Electronics and lights randomly burning out? 128 volts?

I seem to be having a problem with my electrical stuff… namely, it keeps burning out. I’ve replaced the same light bulb twice a month at times, same with cheaper wall-power gadgets like alarm clocks.

I plugged in a multimeter into my wall outlet and it reads 128 (one twenty eight) (!!!) volts. Did it in several areas of the house, got results of 126 to 129 volts but mostly 128.

My (expensive) PC and audio gear is working just fine — been using my laptop/desktop with their “120V-250V” power supplies with no issues. I’ve put a dimmer switch into almost every room now and I can actually keep the lights going for months at a time now if I keep it at lower brightness.

Is there anything else I can/should do? This issue can be quite annoying (and expensive).

how to measure the ammeter in a circuit?

ok, I have to calculate two ammeters in a parallel circuit with 4 bulbs.
I can explain how it looks:
it is a parallel as I said before with a battery on top as usual and right next to it on the right is an ammeter that you have to calculate. This is the first line
The second line consists of a bulb on the right and a ammeter on the left the ammeter reading is 1 but between the first two lines on the left there is ammeter which reading is 2.5. that was the second line
the third line is a ammeter on the right which you have to find out and a bulb on the left. that was
the third line
the last line has two bulbs on the right of the line and at the very left there is an ammeter which has a reading of 0.5

The thing you have to find out is the ammeters
just to let you know the answer for the first ammeter which is next to battery reading is 2.5 and the one on the third line is 0.5 the thing is I am trying to find out is how do you do it

Thanks for all the answers

The relationship between Voltage and Resistance.?

If I have a simple circuit with a power and a resistance, and I use a multimeter to determine the volt of the circuit. But what if I heat the resistance? Will the volts augment? Thanks
If I have a simple circuit with a power and a resistance, and I use a multimeter to determine the volt of the circuit. But what if I heat the resistance? Will the volts augment if the temperature of the resistance increase? Thanks

Do you think sueing Best Buy is the best option?

I have two Definitive Technology home theater speakers that I bought from Best Buy four years ago. About four months ago, I moved to Norway (Europe). So, I bought a couple of Dynex Converters/Adapters (They work as either one) so that I could use the speakers in Norway as well. The converters said they changed the input power (220 Volts) to the output power (110 Volts). Also, it says that the converter can hold up to 1875 Watts, and the speakers only use around 300 Watts. The speakers are bought in the U.S, so they use 110 Volts. Everything seemed to go just fine until i plugged the speakers into the wall and turned the power on. I heard a loud “boom” and the power went out. I knew at once that the speakers were broken.

The next day, I borrowed a voltmeter. I was shocked when I saw that the converters converted the 220 Volt wallpower into only 40 Volts! I have contacted Best Buy now, but they haven’t responded yet. Since I live in Norway now, getting new speakers wouldn’t work (unless they ship them from the States all the way over here), and they only sell Definitive Technology in the United States.

So, my question is, if Best Buy doesn’t come up with a good solution, do you thing I have leverage, and that I can walk away happy from a potential court case?
Thank you,
I appreciate it very much!