Question
An object has a charge of -4.9 uC. How many electrons must be removed so that charge become + 1.4 uC?
Answers
Answered by
GPT 3.5
To find out how many electrons must be removed, we need to determine the change in charge between the initial and final states.
The initial charge is -4.9 uC, and the final charge is +1.4 uC. The change in charge is given by:
Final charge - Initial charge = (+1.4 uC) - (-4.9 uC)
= 1.4 uC + 4.9 uC
= 6.3 uC
Since each electron has a charge of -1.6 x 10^-19 C, we can calculate the number of electrons needed to create a charge of 6.3 uC:
Number of electrons = (Change in charge) / (Charge of one electron)
= (6.3 uC) / (-1.6 x 10^-19 C)
= -3.938 x 10^13 electrons
Therefore, approximately 3.938 x 10^13 electrons must be removed for the object to have a charge of +1.4 uC.
The initial charge is -4.9 uC, and the final charge is +1.4 uC. The change in charge is given by:
Final charge - Initial charge = (+1.4 uC) - (-4.9 uC)
= 1.4 uC + 4.9 uC
= 6.3 uC
Since each electron has a charge of -1.6 x 10^-19 C, we can calculate the number of electrons needed to create a charge of 6.3 uC:
Number of electrons = (Change in charge) / (Charge of one electron)
= (6.3 uC) / (-1.6 x 10^-19 C)
= -3.938 x 10^13 electrons
Therefore, approximately 3.938 x 10^13 electrons must be removed for the object to have a charge of +1.4 uC.
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