How many electrons pass through a wire in 5 minutes, if the current through a wire is 400 mA

Answer 1

Definition of a coulomb:
"A quantity of 1 C is equal to approximately 6.24 x 10¹⁸, or 6.24 quintillion. In terms of SI base units, the coulomb is the equivalent of one ampere-second. Conversely, an electric current of A represents 1 C of unit electric charge carriers flowing past a specific point in 1 s."
Source: http://whatis.techtarget.com/definition/coulomb

time, t=5 minutes = 300 s
current=400 mA = 0.4 A
Total current
= 300*0.4 A-s
=120 A-s
≡ 120*6.24*10¹⁸ electrons
=7.49 *10²⁰ approximately

Answer 2

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Answer 3

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Answer 4

Time,t=5 minutes=300s
Current=400mA=0.4A
Total current =time ×current
=300*0.4A-s
=120*6.24*10power18
=7.49*10power29 Answer (approximately

Answer 5

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