- #36
gneill
Mentor
- 20,986
- 2,932
You can if you want to. It doesn't change the circuit operation in any way if you don't connect anything to the new terminals. Open terminals won't pass any current.gracy said:
You can if you want to. It doesn't change the circuit operation in any way if you don't connect anything to the new terminals. Open terminals won't pass any current.gracy said:
I think it provides a point of connection to external circuits.So there should be some supplied voltage.gracy said:What connection terminal means?
There can be output voltage also.gracy said:I think it provides a point of connection to external circuits.So there should be some supplied voltage.
don't connect anything means?not even voltage source?gneill said:You can if you want to. It doesn't change the circuit operation in any way if you don't connect anything to the new terminals.
Not necessarily. You don't have to connect anything if you don't want to. Sometimes terminals are just provided for test points to make it convenient to connect test equipment like voltmeters.gracy said:I think it provides a point of connection to external circuits.So there should be some supplied voltage.
Right.gracy said:don't connect anything means?not even voltage source?
In such cases we should not apply voltage ?As we can see you did not apply voltage but made A and B connection terminals there when the question asked to find equivalent potential between A and Bgneill said:When the problem named and labelled the two nodes A and B between which you are to determine the capacitance, it effectively implied connection terminals for the circuit.
You don't have to apply anything if the terminals are just serving as labels to identify certain nodes or specify a point of view (way of looking at the circuit).gracy said:In such cases we should not apply voltage ?As we can see you did not apply voltage there when the question asked to find equivalent potential between A and B
In this question I should apply voltage i.e 100 volts in between A and B but no voltage in between C AND D Because it would be wrong.Right?gracy said:If 100 volts of potential difference is applied between a and b in the circuit .Find the potential difference between c and d.
Like this!(sorry capacitor and voltage source symbols look alike)gracy said:In this question I should apply voltage i.e 100 volts in between A and B but no voltage in between C AND D Because it would be wrong.Right?
Right.gracy said:Here C1 and C2 are not in series ,right?
Right. It would be wrong for the problem that you posed to apply another source between C and D. It would change the circuit and create a different problem.gracy said:In this question I should apply voltage i.e 100 volts in between A and B but no voltage in between C AND D Because it would be wrong.Right?
That's right too. Here, 100V is input and Vcd is the output voltage.gracy said:please answer my #46
Correct conventionally.gracy said:Is current direction correct?
From positive terminal of battery to the rest of the circuit.
View attachment 92905
Your indicated currents look fine for the instant that the circuit is first assembled. Since there are no resistances in the circuit it will reach steady-state essentially instantaneously though, and all current flow will cease leaving the capacitors with some charge values.gracy said:
gneill said:all current flow will cease leaving the capacitors with some charge values. [/QUOTE]
I did not understand.
gneill said:Since there are no resistances
capacitors have resistance,right?
I don't understand.gneill said:and all current flow will cease leaving the capacitors with some charge values.
Once the capacitors are charged, the currents will cease. This will happen really very fast as there is no resistance in the circuit.gracy said:I don't understand.
Not ideal ones. An ideal battery would be a pure voltage source, no resistance. Ideal components are perfect representations of the quality that they are specified to be. An ideal capacitor is capacitance only. An ideal inductor is inductance only. An ideal resistor is resistance only. An ideal voltage source is a voltage source only.gracy said:batteries/voltage source has resistance,right?
gracy said:In such cases we should not apply voltage ?As we can see you did not apply voltage but made A and B connection terminals there when the question asked to find equivalent potential between A and B