Asked by Stesson
Oscilloscopes have parallel metal plates inside them to deflect the electron beam. These plates are called the deflecting plates. Typically, they are squares 3.0 cm on a side and separated by 5.0 mm, with very thin air in between. What is the capacitance of these deflecting plates and hence of the oscilloscope?
Express your answer using two significant figures.
-------------------
Using C = epsilon*area / distance:
C = (8.854e-12)(3e-2)^2 / (5e-3)
C = 1.59372e-12 or 1.6e-12
but this isn't correct.
Am I missing something? This is the only capacitance equation that uses area and distance.
Express your answer using two significant figures.
-------------------
Using C = epsilon*area / distance:
C = (8.854e-12)(3e-2)^2 / (5e-3)
C = 1.59372e-12 or 1.6e-12
but this isn't correct.
Am I missing something? This is the only capacitance equation that uses area and distance.
Answers
Answered by
Scott
the deflection is vertical AND horizontal
... two sets of plates
the "thin air" in the question is basically vacuum ... check your epsilon value
... two sets of plates
the "thin air" in the question is basically vacuum ... check your epsilon value
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.