Calculating Charge Transfer between Objects

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In summary, the problem involves finding the number of electrons that must be transferred from a plate with a charge of -3.0 uC to a rod with a charge of +2.0 uC in order for both objects to have the same charge. The final answer is 1.6 x 10 exp 13 electrons. The equations used are q = Ne and N = q/e. The attempt at a solution involves considering what happens when the two objects are touched together and the final charges on each object.
  • #1
alithefickle
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Homework Statement



Hi everyone, would you kindly help me with our homework..Although our teacher was able to give the final answer but he couldn't find a solution that will result to the answer.tsk tsk tsk. Here is the problem.


A Plate carries a charge of -3.0 uC, while a rod carries a charge of +2.0 uC. How many electrons must be transferred from the plate to the rod, so that both object have the same charge?

The final answer given by the teacher is:

1.6 x 10 exp 13 electrons

Would you kindly give me the solution on how the book came up with this answer? Many thanks..cheers!

Homework Equations



q = Ne

N = q/e

The Attempt at a Solution




Would you kindly give me the solution on how the book came up with this answer? Many thanks..cheers!
 
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  • #2
Welcome to PhysicsForums!

We don't do your homework for you here, but we'll work with you. First off, when they're touched together, what happens? What is the final charge on each object? How many electrons is this?
 
  • #3
electrons are transferred to the other material.. Final charge for plate = 4.8 x10 exp-25
for rod is -3.2 x 10exp-25...Im not sure if this is correct...would you kindly check.tnx
 
  • #4
up for now
 

1. What is transfer of electrons?

The transfer of electrons, also known as electron transfer, is a process in which one atom or molecule donates one or more electrons to another atom or molecule. This can occur through various chemical reactions or physical processes.

2. Why is transfer of electrons important?

The transfer of electrons is important because it is a fundamental process in many chemical reactions and biological processes. It is also essential for the generation of electricity and the functioning of electronic devices.

3. How does transfer of electrons occur?

Transfer of electrons can occur through different mechanisms such as oxidation-reduction reactions, electron transport chains, or through the flow of electrons in a conductor. It can also occur through the transfer of electrons between atoms in a covalent bond.

4. What are the different types of electron transfer?

There are two main types of electron transfer: reduction and oxidation. In a reduction reaction, an atom or molecule gains electrons, while in an oxidation reaction, an atom or molecule loses electrons. These reactions can occur separately or simultaneously.

5. What are some real-life applications of transfer of electrons?

Transfer of electrons has many real-life applications, including the production of electricity through batteries and fuel cells, the creation of synthetic materials through chemical reactions, and the functioning of electronic devices such as computers and smartphones. It also plays a crucial role in biological processes such as photosynthesis and cellular respiration.

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