A pH meter is an electronic device which is used
for measuring pH (acidity or alkalinity) of a liquid. It typically consists of
special measuring devices which are connected to an electronic meter that
measures and displays the pH reading. A pH meter measures the concentration of
the hydrogen ions [H+] in a solution. An acidic solution has increased more
positively charged hydrogen ions in a liquid than an alkaline or basic
solution. So it has greater intensity to produce an electric current under
certain different conditions. It is look like a battery that can be used to
produce a greater voltage supply.
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