The work done by the electric field between two plates

In summary, the conversation discusses the relationship between electric field, potential difference, and potential energy between charged plate conductors. The conclusion is that since the electric field is constant, the potential difference and potential energy do not change. The answer is (D), which was initially stated as (C) due to a typo.
  • #1
Fatima Hasan
319
14

Homework Statement


screenshot_49.png


Homework Equations


##V=Ed##
##ΔU=ΔV Q##

The Attempt at a Solution


Since the electric field is constant between charged plate conductors , d and the potential difference (ΔV) don't change.So, the potential energy (ΔU) remain the same .
The answer is (C). Right ?
 

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  • #2
Fatima Hasan said:
Since the electric field is constant between charged plate conductors , d and the potential difference (ΔV) don't change.So, the potential energy (ΔU) remain the same .
Sounds good to me. The change in potential and potential energy is the same for all paths.

Fatima Hasan said:
The answer is (C). Right ?
How did you deduce this from the above?
 
  • #3
Doc Al said:
How did you deduce this from the above?
(C) is a typo , my answer is (D) .
 
  • #4
Fatima Hasan said:
(C) is a typo , my answer is (D) .
That's better. :smile:
 
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What is the work done by the electric field between two plates?

The work done by the electric field between two plates is the amount of energy required to move a charge from one plate to the other, against the electric field. This work is measured in joules.

How is the work done by the electric field calculated?

The work done by the electric field can be calculated using the formula W = qEd, where q is the charge, E is the electric field strength, and d is the distance between the plates. This formula assumes that the electric field is constant between the plates.

What factors affect the work done by the electric field between two plates?

The work done by the electric field is affected by the magnitude of the charge, the strength of the electric field, and the distance between the plates. It also depends on whether the charge is moving towards or away from the electric field.

Can the work done by the electric field be negative?

Yes, the work done by the electric field can be negative if the charge is moving in the direction opposite to the electric field. In this case, the electric field is doing work on the charge, and the energy is being transferred back to the electric field.

What are some real-life applications of the work done by the electric field between two plates?

The work done by the electric field between two plates is used in various applications, such as in capacitors, particle accelerators, and electronic devices. It is also essential in understanding the flow of electricity in circuits and how charges are moved in electric fields.

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