Welcome to Westonci.ca, your go-to destination for finding answers to all your questions. Join our expert community today! Get immediate and reliable solutions to your questions from a knowledgeable community of professionals on our platform. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Calculation Questions (2 Questions, 12 Points Each)1. Electrical charge is sometimes reported in coulombs (C). On this scale, 1 electronhas a charge of -1.6 x 10-19 C. Suppose your body acquires a -125 mC charge on adry day. How many excess electrons has it acquired?

Sagot :

Answer: 7.8125x10^-22 electrons.

Calculations:

• Let ,x , represent electron in a body.

,

• use the following formula tocalculagte excess electrons acquired.

,

• Charge = 125mC /10000 =1.25 x10^-2

[tex]\begin{gathered} \text{Charge = electron }\cdot\text{ electron charge } \\ 1.25X10^{-2\text{ }}=\text{ x }\cdot1.6X10^{-19} \\ x\text{ = }\frac{1.25X10^{-2}}{1.6X10^{-19}} \\ \text{ }\therefore x\text{= }7.8125X10^{-22} \end{gathered}[/tex]

This means that there are 7.8125x10^-22 excess electron aqcuired.