MH's ideal coil and voltage question

[MileHigh]

Figure 2 represents my circuit.

[tinman]

Figure 2 represents my circuit.

No
figure 3 represents your circuit.

Replace your ideal voltage source with an ideal capacitor,and you have the same.
an ideal capacitor is your voltage source,where that ideal capacitor has no series resistance.
You charge your capacitor to 4 volts,and you place it across your ideal coil.
Can you now measure a voltage anywhere around that circuit,even though current is now flowing through it?.


Brad

[tinman]

Please draw out the current trace of your figure no. 3 then if V=1V and L=1H (both ideal).

If it is anything but an infinite amplitude, what is the point of illustrating it with a short circuit, other than to add confusion?

It is to show you that you cannot place a voltage across a shorted(looped) ideal inductor.


Brad

[MileHigh]

Yes, and I stand corrected.  I thought that you were referring to the circuit stipulated by Tinman and depicted in Fig.3.

Verpies, this is mass confusion day.  I find your figure 3 confusing.  If we view a shorted ideal coil like a classic toroidal inductor, then aren't we talking about putting a voltage source across the toroid such that it ends up looking like two separate coils in parallel?

If that is the case, I fail to see any utility in that.

(sorry for the chicken scratchings drawing.)

[verpies]

Please draw out the current trace of your figure no. 3 then if V=1V and L=1H (both ideal).

In that case:
Current (i) flowing through the inductor equals i=ΔΦ/1H and the current flowing trough the voltage source is infinite.