Dont know how to use capcitor or its uses

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AI Thread Summary
The discussion revolves around a user's confusion regarding the use and functionality of capacitors, particularly in the context of a homework problem. The user expresses frustration over the lack of information in their textbook and seeks quick answers for a university test. Respondents suggest using online resources, like Google and Wikipedia, to better understand the concepts, including the time constant and voltage calculations related to capacitors. There is an emphasis on the importance of self-study and the acknowledgment that learning complex topics requires effort. Overall, the conversation highlights the challenges of grasping capacitor theory and the need for accessible educational resources.
tetoo
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Homework Statement



Picture1.jpg


Homework Equations





The Attempt at a Solution


i tried to ignore the capacitor and i got 2.5 amp bec i don't know how to use capacitor or its uses
 
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tetoo said:
...bec i don't know how to use capacitor or its uses

Time to open a book then!
 
tetoo said:
i don't know how to use capacitor or its uses

There is this really nifty facility called "Google Search". You would be well advised to learn how to use it.
 
http://en.wikipedia.org/wiki/Time_constant

After one time constant the capacitor will be charged to about 0.632 * 500V.
Now you just need to calculate the voltage that drops over the resistor and divide that by 200 Ohm.
 
phinds said:
There is this really nifty facility called "Google Search". You would be well advised to learn how to use it.

Pranav-Arora said:
Time to open a book then!
do i have to say every time i post something that these questions are just out of book and i need quick answers my book doesn't contain a lot of info about the capacitor your posts arent helpful i am in vacation i just solve these questions to apply for a university test which will contain questions from many books not in my high school unfortunately and when i googled it i found really complex things :mad:
 
DrZoidberg said:
http://en.wikipedia.org/wiki/Time_constant

After one time constant the capacitor will be charged to about 0.632 * 500V.
Now you just need to calculate the voltage that drops over the resistor and divide that by 200 Ohm.

do you mean that the final voltage will be 500-316=184 and current will be 0.92 amp or i have to do something else thanks for your help dr i really appreciate it but my friend told me that the resulting voltage will be opposite in direction to that of battery can you explain how the capacitor work thx.
 
tetoo said:
do i have to say every time i post something that these questions are just out of book and i need quick answers my book doesn't contain a lot of info about the capacitor your posts arent helpful i am in vacation i just solve these questions to apply for a university test which will contain questions from many books not in my high school unfortunately and when i googled it i found really complex things :mad:

There's your problem right there.

"There is no royal road to learning"

http://www.infoplease.com/dictionary/brewers/royal-road-to-learning.html
 

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