- #1
sinsaman88
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Hello, I am a first year undergrade currently taking elementary physics course in university.
I have hard time understanding the concept of capacitors. Please correct me if I am wrong.
1. My understanding of capacitor is that it stores energy by setting up a voltage across and releases when energy is needed. (Could you tell me more specifically how capacitors work?)
2. In capacitors connected in parallel, voltage across is equal. The textbook says that when capacitors are connected in parallel it sets up an equipotential line and therefore the potential is the same across the all capacitors. (Could you also explain this ? Or give better explanation?)
Thank you, and is it also crucial to recognize all the different units (but same) for capacitors?
F = C/V = C^2/Nm etc... yes I can derive from one unit to another, but sometimes it is difficult to see that those units are all equivalent...
Thanks again!
I have hard time understanding the concept of capacitors. Please correct me if I am wrong.
1. My understanding of capacitor is that it stores energy by setting up a voltage across and releases when energy is needed. (Could you tell me more specifically how capacitors work?)
2. In capacitors connected in parallel, voltage across is equal. The textbook says that when capacitors are connected in parallel it sets up an equipotential line and therefore the potential is the same across the all capacitors. (Could you also explain this ? Or give better explanation?)
Thank you, and is it also crucial to recognize all the different units (but same) for capacitors?
F = C/V = C^2/Nm etc... yes I can derive from one unit to another, but sometimes it is difficult to see that those units are all equivalent...
Thanks again!
