Calculating the number of electrons

When calculating the number of electrons, you’re really calculating the charge (because charge is just a multiple of the number of electrons).

Charge of a single electron

The charge of a single electron is about coulombs.

Similarly a coulomb has the same charge as electrons.

Equation for the number of electrons in a charge

Where:

• is the number of electrons
• is the total charge in coulombs
• is the charge of a single electron ()

Example: if flows into a motoro in , calculate the current flow

Estimate the number of electrons flowing in if a current of flows

• electrons