An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
In 30 seconds, approximately 2.81 × 1 0 21 electrons flow through the device delivering a current of 15.0 A . This was calculated by finding the total charge and dividing by the charge of a single electron. By using the relationships between current, charge, and the number of electrons, we derived the answer step by step.
;
This is the third or fourth time I have posted this:
One Coulomb of electrons per second is One Ampere.
One Coulomb = 6.241 x 10^18 electrons
SO:
6.241 x 10^18 * 15 * 30 = 2.81 x 10 ^21 electrons ;
