What is an electric current?

Answer 1

One kind of electrical current is the movement of electrons.

Electric currents are flows of the electrically charged particles found naturally within all conductors.

During an electric current in a wire or other metal object, the electrons of the metal atoms are forced to flow along.

Other answers

During currents in electrolytes, charged atoms called ions are flowing. In salt water, battery acid, wet earth, and human bodies, the ions found naturally in those materials are forced to flow. For example, an electric current in salt water is composed of positively charged sodium atoms moving in one direction, while negatively charged chlorine atoms go the other way.

During currents in plasma, movable electrons are flowing one way while positively charged gas atoms go the other way. In electric sparks, neon signs, fluorescent lamps, and in plasma in outer space, most of the current is composed of moving electrons, but a tiny portion is caused by positive gas ions flowing backwards against the electron motion.

Answer 2

DEFINATION:-electric current is defined as the time rate of change of charge passing through a specified area
the moving charge may be positive or negative;the area may be cross-sectional area of a wire or some other suitable spatial area where charge are in motion.
expressed mathematically as -
i=dq/dt
in this equation i denote the instantaneous electric current and q denote the net charge,which may be the positive as well as negative kind,that is,

q = N1p+N2e
where,
N1p = total positive charge,
N2e= total negative charge
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