What formula is used to calculate electric current?

Electric current is calculated using the formula:
I = Q / t

where:

• I = electric current (in amperes, A)
• Q = electric charge (in coulombs, C)
• t = time (in seconds, s)

This formula means that current is the rate of flow of electric charge through a conductor.

In practical circuit analysis, current can also be calculated using Ohm’s Law:
I = V / R, where voltage and resistance are known.

Both formulas are fundamental for understanding, measuring, and solving electrical problems.