Very interesting video I hope you have prepared some more of these lessons which are really very tutorial one for beginners like me.thanks for the videos,I have even two of them.
I think this video doesn't really explain how to use capacitors in circuits at all, basically he's just explaining what a parallel circuit is, he could have explained the same thing with resistors or anything else.
Of course, but my need was to understand how they work in circuits; I already had the basics down. My only problem was the misleading and unspecific title.
I agree 100%. He should have just referred us to a video on parallel circuits and moved on to the explanation that reflected the title! Good teacher, poor undertanding of the english language
+michael Woods Technically, "positive charge" flows from positive to negative in a circuit. Current is typically defined by the positive flow of charge, rather than the actual flow of electrons.
@@smooooth_ I know this is an old post but ... think of it this way: Yes, it is electrons that physically flow through a circuit. BUT, mathematically, charge can flow either way. IE, if electrons, -ve charges, flow in 1 direction then the opposite must also be true that +ve charges flow in the opposite direction and vice versa. Forget physical flow of electrons and concentrate on charge flow. I hope this helps :)
@@aaronspencer1880 Since that comment I am in college and I do understand it a lot more now. In fact I don't even think about one vs the other confusion much, especially when it's mixed with all the other parts of circuit analysis. Thanks
Pls.. Any one..i want answers this question.. A230V, 50Hz voltage is applied to a coil of L=5H and R=2 omega in series with a capacitance c. What value must C have in order that the p. d across the coil shall be 250v?
Why are capacitors used in DC circuits? .aren't they just going to charge up and when fully charged stop current? So what's the point in putting cappacitors in DC circuits
I guess it's the lack of electrons in the positive plate as elections flow from this plate to the positive side of the terminal of the battery leaving just positive nuclei
I guess it's the lack of electrons in the positive plate as elections flow from this plate to the positive side of the terminal of the battery leaving just positive nuclei
This is an impossible circuit if you put a switch in series with the capacitors. Voltage across a capacitor cannot change instantaneously. without violating its terminal V-I relationship.
Excellent Video. You have a knack for teaching. Instant subscribe and Like! @ 6:22 in the video, ou mention that the voltage would read the same between the two caps in the example circuit, unless there was another component (i.e.resistor, cap) between said capacitors. the component you are potentially referring to have to be a diode that only allows flow in one direction? Thanks!
If a diode is added in series with the supply voltage it does drop or stop the DC voltage, depending on which way it's connected. If in line before the 1st cap the voltage will drop to all caps, if added between cap 1 & 2 it would only drop voltage to #2 & beyond. Sorry I've forgotten the exact voltage drop across diodes. Likewise a resistor drops voltage but in the case of a resistor how much depends on it's ohm value & where you put it in the circuit.
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Excellent video. Best explanation of capacitors that I've seen and extremely thorough. You're an excellent teacher.
vdenich
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Very interesting video I hope you have prepared some more of these lessons which are really very tutorial one for beginners like me.thanks for the videos,I have even two of them.
So happy you liked it!
I couldn't understand anything about it, and thought physics and electrical engineering was hard. In fact, it is soo interesting :D Thanks
Excellent video. After watching this and I will be watching your other vids-I am a subscriber.
you are a great teacher..
I think this video doesn't really explain how to use capacitors in circuits at all, basically he's just explaining what a parallel circuit is, he could have explained the same thing with resistors or anything else.
+Kha-Lisi You must learn the basics.. keeping a strong base is the most important thing at any field.. and he is great at making the basic understood.
Of course, but my need was to understand how they work in circuits; I already had the basics down. My only problem was the misleading and unspecific title.
I agree 100%. He should have just referred us to a video on parallel circuits and moved on to the explanation that reflected the title! Good teacher, poor undertanding of the english language
so good I learnt a little
i love this teaching,supperr
im thankfull for this video sir,,,,,
nice explanation!
current flows from negative to positive in a circuit, you learn that the first week in any basic electronics course.
+michael Woods Technically, "positive charge" flows from positive to negative in a circuit. Current is typically defined by the positive flow of charge, rather than the actual flow of electrons.
+Jeremy B that's so confusing. College is going to be hell, I tell ya.
@@smooooth_ I know this is an old post but ... think of it this way:
Yes, it is electrons that physically flow through a circuit. BUT, mathematically, charge can flow either way. IE, if electrons, -ve charges, flow in 1 direction then the opposite must also be true that +ve charges flow in the opposite direction and vice versa. Forget physical flow of electrons and concentrate on charge flow. I hope this helps :)
@@aaronspencer1880 Since that comment I am in college and I do understand it a lot more now. In fact I don't even think about one vs the other confusion much, especially when it's mixed with all the other parts of circuit analysis. Thanks
I think this greate man helped me out ...I onley have to verefy IFF a supercapacitor charge and disscharge 60 times a minute?????
nice doctor
awsome ,really! u blew me out in the world of physics!
Why are you teaching convention current flow in a DC circuit?
thank you
Pls.. Any one..i want answers this question.. A230V, 50Hz voltage is applied to a coil of L=5H and R=2 omega in series with a capacitance c. What value must C have in order that the p. d across the coil shall be 250v?
Why are capacitors used in DC circuits? .aren't they just going to charge up and when fully charged stop current? So what's the point in putting cappacitors in DC circuits
OK, the electrons create the negative charge in this circuit, but what atomic particle creates the positive charge?
I guess it's the lack of electrons in the positive plate as elections flow from this plate to the positive side of the terminal of the battery leaving just positive nuclei
I guess it's the lack of electrons in the positive plate as elections flow from this plate to the positive side of the terminal of the battery leaving just positive nuclei
They call the positive charge "holes" ie. where the electrons came from. The lack of electrons.
Lack of electrons.
This is an impossible circuit if you put a switch in series with the capacitors. Voltage across a capacitor cannot change instantaneously. without violating its terminal V-I relationship.
I thought positive attracts negative(electrons) do to a lack of electrons?
Excellent Video. You have a knack for teaching. Instant subscribe and Like!
@ 6:22 in the video, ou mention that the voltage would read the same between the two caps in the example circuit, unless there was another component (i.e.resistor, cap) between said capacitors. the component you are potentially referring to have to be a diode that only allows flow in one direction?
Thanks!
If a diode is added in series with the supply voltage it does drop or stop the DC voltage, depending on which way it's connected. If in line before the 1st cap the voltage will drop to all caps, if added between cap 1 & 2 it would only drop voltage to #2 & beyond. Sorry I've forgotten the exact voltage drop across diodes. Likewise a resistor drops voltage but in the case of a resistor how much depends on it's ohm value & where you put it in the circuit.
Sir i am from India ,, and i want to purchase the course ,,how can i purchase it?
Hi! You can get them all at www.MathAndScience.com
@@MathAndScience sir i want to download the videos by paying money ,how can i do it sir.
Bhuvana M yes visit the website and you can pay to download. Thanks!
1farad equals to how much microfarad?
1 million!
过两天就考试了...加u-----25Apr16- 1:55pm
thank you