[Physics 2] why can this parallel portion be considered negligible/nonexistent

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Transformer Voltage Drop Q
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A place for asking for asking for help to better understand physics! When asking for help with a physics problem, please include what you have already tried in an effort to solve the problem. Asking for someone to help you cheat on an exam is prohibited and will result in a ban. This includes soliciting others to take exams on your behalf, with or without compensation.[physics 2] conceptual question about electric potential
A place for physics students of any level to discuss the intricate profoundness of the universe.How does the subreddit AskScience have millions of followers, yet whenever I ask a question, it’s complete silence! Could it be a front for advertisements in a way that violates Reddit’s policies?
Ask away! Disclaimer: This is an anonymous forum so answers may not be correctHuman capacitance Q
A place for asking for asking for help to better understand physics! When asking for help with a physics problem, please include what you have already tried in an effort to solve the problem. Asking for someone to help you cheat on an exam is prohibited and will result in a ban. This includes soliciting others to take exams on your behalf, with or without compensation.Looking for advice for Circuit model scenarios I made up in my head to see if my thought process is correct
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Explain Like I'm Five is the best forum and archive on the internet for layperson-friendly explanations. Don't Panic!Question about Capacitor with vacuum in between instead of dialectric
A place for asking for asking for help to better understand physics! When asking for help with a physics problem, please include what you have already tried in an effort to solve the problem. Asking for someone to help you cheat on an exam is prohibited and will result in a ban. This includes soliciting others to take exams on your behalf, with or without compensation.ELI5: Why is it more energy efficient to leave your central air running all day when you are not home, than it is to leave it off when away and then turn it on when you arrive home?
Explain Like I'm Five is the best forum and archive on the internet for layperson-friendly explanations. Don't Panic!AC current question

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