what's special about a 0.1 to 0.2 volts current?
0.1 volt is not a current. Its a potential difference.
if you know please explain,thanks
Know what? Your question is too vague to be answered. Be specific.
There is nothing inherently special about 0.1 to 0.2 volts (potential) or current flow( amperes)...unless you specify a particular situation...such as noise in an amplifier or bias of a transistor.
Volt V is the unit of potential. Current means V/R i.e,voltage/resistance.
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