Current is the flow of electric charge through a conductor, typically measured in amperes (A). It is driven by a voltage difference and encounters resistance within the material.
5 Must Know Facts For Your Next Test
The unit of current is the ampere (A), which represents one coulomb of charge passing through a point per second.
In a series circuit, the current is constant throughout all components because there is only one path for the charge to flow.
In a parallel circuit, the total current is the sum of the currents through each parallel branch.
Ohm's Law relates current ($I$), voltage ($V$), and resistance ($R$) with the formula $I = \frac{V}{R}$.
Measuring devices like ammeters are used to measure current, and they must be connected in series with the circuit.