How many electrons flow through a battery that delivers a current of 3.0 A for 12 s?

3 Answers

• 1 Coulomb is the charge that moves when 1 Amp flows for 1 Second, so here we have 3 x 12 = 36 Coulombs

  1 Coulomb is equal to 6.24151 × 10^18 electrons (thanks Wikipedia).

  So the number of electrons that flows when 3A flows for 12 S is :

  3 x 12 x 6.24151 × 10^18 electrons = 2.24694 x 10^20 electrons.

  Source(s): Basic high school physics.

• charges flow= 3*12=36 Coulombs.

  # of electrons=36 C/(1.6*10^-19)=22.5*10^19 electrons.

• 36 C