The quantity of electricity is measured in **coulombs** (C).
A **coulomb** is the unit that represents the amount of electric charge. It is defined as the charge transported by a constant current of one ampere in one second.
To break it down:
- If a current of 1 ampere flows for 1 second, the total electric charge is 1 coulomb.
So, the quantity of electricity can be calculated using the formula:
\[ Q = I \times t \]
Where:
- \( Q \) is the electric charge (in coulombs),
- \( I \) is the current (in amperes),
- \( t \) is the time (in seconds).
This means that the longer the current flows, or the stronger the current, the more electricity (in coulombs) is involved.