?

in an op-amp, the gain must never be greater than the supply.

Is this true??

Can someone tells me the inductance value of the voice coil of an 8 ohms 0.5W loudspeaker in mH??

please!!

Hi Guys, I built this 2W amplifier recently and the

problem is when I plugged it to my MP3 and turn the volume to the max. on the MP3, I get some noises on the output.

I should turn the volume down on my MP3 to get a better sound without noises.

So how can I solve this problem without turning my MP3 volume down.

Here the link of the circuit: http://www.mediafire.com/view/myfiles/#dq377fxsqem...

The speaker is an 8 ohm, 12W.

Hi guys.

Is a DC Barrel Plug ( Male) 2.1 x 5.5mm is compatible with an Arduino Uno R3?

The DC Barrel Jack Plug - Male 2.1 x 5.5mm looks like this:

https://www.sparkfun.com/products/11476

Give me a valid answer!!

Thanks!

what is the ideal weight for a 6 feet (76 inches) 18-year old kid (male)?

Yep. I've burned Resident Evil: Retribution on a DVD+R recordable 4.7gb using the famous software "Nero", Burning speed at 16x!! In my island, we're using "DVD+R recordable 4.7gb" and it's 16x burning speed! Manufacturer name "Melody" .

Recently I've played that DVD on my DVD player and the image is like scratching,but "no scratching signs on the DVD disc,physically"

but when I played that on my computer, it's playing fine, without scratching, works like a charm!!

I've been tried another DVD+R disc on my DVD player that I've burned myself and it played fine, no signs of scratching on the image but sometimes it starts to scratch a little bit . So the question is" Is my DVD player is bad or not??

And I've cleaned my DVD tray and lens last week!!

So, what the heck is happening with my DVD player?