Calculating Charged Particles Transferred -15nC to -10nC

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SUMMARY

The discussion focuses on calculating the number of charged particles transferred when a plastic rod with an initial charge of -15.0 nC touches a metal sphere, resulting in a final charge of -10.0 nC. The difference in charge is 5 nC, which is equivalent to 5 x 10^-9 C. Using the charge of a single electron, e = 1.6 x 10^-19 C, the number of electrons transferred can be calculated using the formula N = Q/e, leading to the conclusion that approximately 31,250 electrons were transferred.

PREREQUISITES
  • Understanding of electric charge and its units (nanocoulombs)
  • Basic knowledge of elementary charge (1.6 x 10^-19 C)
  • Familiarity with algebraic manipulation to solve for variables
  • Concept of charge conservation in conductive materials
NEXT STEPS
  • Learn about charge conservation principles in electrostatics
  • Explore calculations involving Coulomb's law and electric forces
  • Study the concept of electron transfer in conductive materials
  • Investigate applications of nanocoulombs in practical electrostatic scenarios
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding electrostatics and charge transfer processes in conductive materials.

Foxhound101
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Homework Statement



A plastic rod that has been charged to -15.0 nC touches a metal sphere. Afterward, the rod's charge is -10nC.

Part C -
How many charged particles were transferred?

Homework Equations


Don't know any
e=1.6 * 10^-19

The Attempt at a Solution



This chapter greatly confuses me...This should be really simple and I am just being stupid...

There is a difference of 5nC between the original charge and the current charge. However, besides knowing that I do not know what to do. There are no equations in this part of the chapter.
 
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Foxhound101 said:
There is a difference of 5nC between the original charge and the current charge.


Yes this is correct.

Now if 1 electron has a charge of 1.6 * 10^-19C. How many electrons would it take to make a chare of 5nC?

i.e. If N is the number of electrons, and e is the charge of an electron. What N is such that Ne=5*10-9?
 
That was very helpful rock.freak.
 

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