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Author Question: A 4.0 F and a 1.0 F capacitor are connected in parallel and both are charged with a 12. volt ... (Read 73 times)

DelorasTo

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on: Jul 27, 2018
A 4.0 F and a 1.0 F capacitor are connected in parallel and both are charged with a 12. volt battery. They are disconnected from the battery and reconnected positive side of the 1st to negative side of 2nd, and neg. side of 1st to pos.
 
  side of 2nd.
  (a) How much was each charged when connected to the battery?
  (b) After reconnecting, how much charge is stored?
  (c) What potential exists across the final parallel combination?

Question 2

Consider a sound intensity of 16.  10-8 W/m2.
 
  (a) What is the sound intensity level?
  (b) At twice the distance from the source, what would be the intensity level?
  (c) At how many times the original distance would the intensity level decrease by 12. db?


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welcom1000

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Reply #1 on: Jul 27, 2018
Answer to Question 1

(a) 48. C & 12. C
(b) 36. C
(c) 7.1 volts

Answer to Question 2

(a) 52. db
(b) 46. db
(c) 4.0 times


DelorasTo

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Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

jomama

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Reply 3 on: Yesterday
Excellent

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