Number of electrons in 1 Coulomb charge is _________
A. 6.25*1021
B. 6.25*1020
C. 6.25*1025
D. 6.25*1023
Answer:A
Number of electrons in 1 Coulomb charge is _________
A. 6.25*1021 B. 6.25*1020 C. 6.25*1025 D. 6.25*1023
Explanation: Electron has the charge of 1.602*10-19 Coulomb. So, the number of electrons in 1 Coulomb of charge is \(\frac{1}{1.602*10^{-19}}\) = 6.25*1021. This huge number of electrons can be accumulated to form 1C of charge. Thus, we can conclude that we need Avogadro’s number of electrons (approximately) to get 100C charges.