A) Objects A and B are electrically neutral. After you rub them together, you fi

Question

A) Objects A and B are electrically neutral. After you rub them together, you find that object A has a positive charge of +14 nC:

What can you say about the charge on object B? Explain how you know.

If you were to rub the 2 objects together more rapidly, what would happen to the quantity of charge on object A? Explain how you know.

B) The humidity of your environment can affect electrostatic measurements, since water molecules are dipolar. How can the humidity of your lab environment affect your experimentation today? What sort of environment would be best to perform electrostatics experiments? Explain your answer.

Explanation / Answer

A) as the charge intially zero

the final charge will also be zero

qA +qB = 0

14 + qB = 0

qB = -14 nC

the charge qB is -14 nC

for more rapid movement , the charge will be accumulated more.

and the charge on A will increase

part b)
humidity of lab environment affect experimentation today can cause the charge to change due to humidity.

best to perform is dry air day.

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