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Author Question: State three reasons for adding a dielectric material between the plates of a capacitor. What will ... (Read 32 times)

Bob-Dole

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on: Jul 29, 2018
State three reasons for adding a dielectric material between the plates of a capacitor.
 
  What will be an ideal response?

Question 2

A factory siren indicating the end of a shift has a frequency of 90.0 Hz.
 
  (a) What frequency is perceived by the occupant of a car traveling towards the factory at 25 m/s?
  (b) What frequency is perceived by the occupant of a car traveling away from the factory at 30 m/s?


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stillxalice

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Reply #1 on: Jul 29, 2018
Answer to Question 1

(1 ) Dielectrics do not break down (allowing electric charge to flow) as readily as air, so a higher voltage can be applied without charge passing across the gap.
(2 ) A dielectric allows the plates to be placed closer together without touching thus allowing an increased capacitance because the plate separation is less.
(3 ) If a dielectric fills the space between the two conductors, it increases the capacitance.

Answer to Question 2

(a) 97 Hz
(b) 73 Hz


Bob-Dole

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

carojassy25

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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