Question

Find the charge if number of electrons is 4x10^-18

Answer 1

Answer : 1 e=1.6*10^-19 C

4*10^-18 e=? C

? C =1.6*10^-19 C*4.810^-18 e/1 e

? C =7.68*10^-37

Answer 2

Answer:

#"Charge on an electron" = "e" = -1.60*10^(-19) "C"#

#"Number of electrons"=("Total charge")/("Charge of an electron")="Q"/"e" = (-4.8*10^(-18))/(-1.6*10^(-19))=30#

There are 30 electrons in #-4.8*10^(-18)"C"# of charge.