If 1.34 ✕ 1020 electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it?

Given :

Number of operations move through a pocket calculator during a full day's operation , .

To Find :

How many coulombs of charge moved through it .

Solution :

We know , charge in  one electron is :

So , charge on n electron is :

Therefore , -21.44 coulombs of charge is moved through it .

Hence , this is the required solution .

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2