Normal sound when using nexus 7?

[jev425]

When i am using my tablet and open any kind of app or maybe watch a youtube video I can actually hear a hum coming from the back of the tablet. If I had to guess maybe its the processor? Just curious to know if anyone else hears it

 

[brosko]

I think this has been discussed on here before? I believe the conclusion was not normal. As for my n7 no noise at all.