Calculate the work done by a Generator

In summary, the conversation discusses the calculation of work done by a generator or other source of potential difference in moving 1 mole of electrons from an initial point of electric potential to a lower potential. The solution involves calculating the molecular weight of a mole of electrons and understanding the relationship between charge, voltage, and work.
  • #1
shinobi12
16
0

Homework Statement



How much work is done by a generator or some other source of potential difference in moving 1 mole of electrons from an initial point of electric potential 9.00 V to where the potential is -5.00 V


Homework Equations



Im sure what to do



The Attempt at a Solution



I calculated the molecular weight of 1 mole of electrons, 5.49 x 10^-21 kg. Then I got extremely stumped. I'm a beginner at electromagnetism so I am not sure what to do at this point.
 
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  • #2
shinobi12 said:

Homework Statement



How much work is done by a generator or some other source of potential difference in moving 1 mole of electrons from an initial point of electric potential 9.00 V to where the potential is -5.00 V

Homework Equations



Im sure what to do

The Attempt at a Solution



I calculated the molecular weight of 1 mole of electrons, 5.49 x 10^-21 kg. Then I got extremely stumped. I'm a beginner at electromagnetism so I am not sure what to do at this point.

A mole of electrons is a Faraday. You might want to look up how many coulombs a Faraday is. This is a measure of charge.

As to Work that is generally just charge * change in voltage. (Vf - Vi) * coulombs
 
  • #3
thanks i really appreciate your help
 

Related to Calculate the work done by a Generator

1. How do I calculate the work done by a generator?

To calculate the work done by a generator, you will need to know the rotational speed of the generator's rotor, the torque applied to the rotor, and the time period of operation. The formula for calculating work is W = T x θ, where W is work, T is torque, and θ is the angle of rotation in radians.

2. What is the unit of measurement for work done by a generator?

The unit of measurement for work is joules (J). This is the same unit used to measure energy.

3. Can the work done by a generator be negative?

Yes, the work done by a generator can be negative. This occurs when the generator is consuming energy instead of producing it, such as when it is being started or when it is being used to brake a moving object.

4. How does the work done by a generator relate to its power output?

The work done by a generator is directly proportional to its power output. This means that the more work the generator does, the more energy it produces per unit time, and therefore the higher its power output will be.

5. Can the work done by a generator be calculated using any other method?

Yes, the work done by a generator can also be calculated using the formula W = P x t, where W is work, P is power, and t is time. This method is useful when the power output of the generator is known, but the torque and rotational speed are not.

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