# what measure reflects % of charged object that is uncharged?

Discussion in 'Electronic Basics' started by David Virgil Hobbs, Apr 17, 2004.

1. ### David Virgil HobbsGuest

WHAT UNIT OF MEASURE IN ELECTRONICS REFLECTS THE DIFFERENCE BETWEEN AN
ORGANISM/UNIT THAT HAS MANY INTERNAL SUBUNITS CHARGED AND AN
ORGANISM/UNIT THAT HAS FEW SUBUNITS CHARGED?

My question is, in electronics is there a measure of charge that takes
into account how much of the measured object is electrically neutral?
For example, supposing there was an organism (or unit), organism X,
that contained 10 molecules of which 2 were positively charged and 3
negatively charged. And suppose there was another organism, organism
Y, that also contained 10 molecules, with 3 being positively charged
and 4 being negatively charged. Assume all charges to be 1 or -1. Is
there any unit of measure in electronics that would reflect the
difference between organism X and organism Y, which is that 5 out of
10 molecules in organism X are charged whereas 7 out of 10 molecules
in organism Y are charged?

What if any formal unit of measure in electronics measures an
organism/unit's total charge per weight of the organism/unit (total
charge/weight)? What if any formal unit of measure in electronics
measures an organism/unit's total charge per volume of the
organism/unit (total charge/volume)?

2. ### Bob MastaGuest

This isn't an electronics thing, it's a chemistry/physics thing.
An object made out of atoms consists of protons, electrons,
and neutrons. The percentages you are looking for can all
be worked out from the periodic table.

Unless you are talking about really tiny objects, any extra
charge added in the course of "electronics"-type operations is
absolutely trivial compared to the charged particles in the
atoms themselves.

Bob Masta

D A Q A R T A
Data AcQuisition And Real-Time Analysis
www.daqarta.com

3. ### John LarkinGuest

Charge is measured in coulombs; a single electron has a charge of
1.6e-19 coulombs. Charge/weight would just be coulombs/kg or
something.

If an object is conductive, the charge is just spread all around,
basically shared among the atoms. If it's not conductive, there could
be lumps of positive or negative charge here and there, but you could
stick it in a Farady cage and then measure the net charge induced into
the cage.

John

4. ### Rich GriseGuest

coulomb/mole.