what is current. and its formula and derivation.
Answers
Answer:
The relationship between the voltage (V), resistance (R), and current (I) is V=IR; this is known as Ohm's law. An electric current is the rate of flow of electric charge past a point or region. An electric current is said to exist when there is a net flow of electric charge through a region..
Answer:
what is current
Current is a flow of electrical charge carriers, usually electrons or electron-deficient atoms.Physicists consider current to flow from relatively positive points to relatively negative points; this is called conventional current or Franklin current. Electrons, the most common charge carriers, are negatively charged.
formula
Current is usually denoted by the symbol I. Ohm's law relates the current flowing through a conductor to the voltage V and resistance R; that is, V = IR. An alternative statement of Ohm's law is I = V/R. The relationship between current and resistance in an electric circuit. Encyclopædia Britannica, Inc.