Question

Q.2What is amount of current in a wire if 30000 electrons flows in 3min?​

Answer 1

Answer:

One Ampere means 1 Coulomb of charge passes through a point every second. Based on this, you can calculate how many Coulombs of charge pass through a wire in 3 minutes at 0.4 Amperes.

Q=It=(0.4 A)(3 min)(60 sec1 min)=72 C  

The charge of an electron is  q  = 1.60217662  ×  10 −19  C. Therefore, the number of electrons  N  is

N=Qq=72 C1.60217662×10−19 C=4.4939×1020  

This means almost 450 quintillion electrons have passed through a single point in that wire during the three minutes.

Explanation:

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