The inductor shown in Fig. E30.11 has inductance 0.260 H and carr...

Question

The inductor shown in Fig. E30.11 has inductance 0.260 H and carries a current in the direction shown. The current is changing at a constant rate.

(a) The potential between points a and b is Vab = 1.04 V, with point a at higher potential. Is the current increasing or decreasing?

Accepted Answer

Welcome back, everybody. We are making observations about this induct er right here, we are told that at this point Q there is a lower potential than at this point P which we'll just use this minus sign and this plus sign as an indicator of such and we are tasked with finding does the current in this induct er rise or fall. Let's think about this here. We know that current flows from high potential to low potential. Therefore, it is flowing this way, right? But this plus and minus serve for something else here. This plus and minus serves as the positive and negative sides of a battery in this case. So if we are flowing from the positive through the positive to the negative of a battery, then we know that the current is going to in fact increase leading to our answer choice of B Thank you all so much for watching. I hope this video helped. We'll see you all in the next one.

The inductor shown in Fig. E30.11 has inductance 0.260 H and carries a current in the direction shown. The current is changing at a constant rate. (a) The potential between points a and b is Vab = 1.04 V, with point a at higher potential. Is the current increasing or decreasing?

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The inductor shown in Fig. E30.11 has inductance 0.260 H and carries a current in the direction shown. The current is changing at a constant rate.
(a) The potential between points a and b is Vab = 1.04 V, with point a at higher potential. Is the current increasing or decreasing?