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Q & A: Will electronics gain weight?

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Most recent answer: 06/12/2015
Q:
Well You know computer hardware gets inducted electricity so will hard disks or rams (the devices we use to store) gain weight overtime since we have to put or pull electrons to those disks/cells ?
- U.Fırat Ozdemir (age 18)
Mersin Turkey
A:

Your observation about what constitutes the electrical current is quite correct: electrons. However, they are flowing in a cyclic manner from the high to low energy/voltage. That is, whatever comes in comes out in general. In fact, there is not an appreciable overall charge accumulation in the circuitry elements. In RAM, there is a plethora of transistors and capacitors, which you need charge up/down to store information, but in most of the configurations they have about the same but opposite charges. As + charge indicates deficiency of electrons (not extra abundance of protons), the total number of electrons will be the same in the charged and neutral states. As number of nucleons also does not change, I do not think there should be a change in mass. The way how a typical hard drive stores information is by magnetically labelling the spins on the disc, so no mass change in here, either.

Tunc 


(published on 06/12/2015)

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