- #1

- 624

- 11

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

In summary, the sign of the ##L\frac{dI}{dt}## term in DC circuits is dependent on the perspective taken. It can be seen as the voltage drop across the inductor, with a positive sign indicating an increasing current, or as an EMF acting as a voltage source with a negative sign indicating the same. Ultimately, it is important to understand the underlying principles, such as Faraday's law, to determine the correct sign in a given situation.

- #1

- 624

- 11

- #2

- 5,498

- 2,813

- #3

- 624

- 11

Thank you! So here ##\epsilon## is the sum of any voltage source in the circuit? Something like ##\epsilon = \sum_i V_i##Charles Link said:Yes. The correct differential equation is ## \mathcal{E}=L \frac{dI}{dt}+IR +\frac{Q}{C} ##, where ## I=\frac{dQ}{dt} ##.

- #4

- 5,498

- 2,813

- #5

- 24,155

- 14,658

https://th.physik.uni-frankfurt.de/~hees/physics208/phys208-notes-III.pdf

The part on induction you starts on page 106. The course website with some more material is here:

https://th.physik.uni-frankfurt.de/~hees/physics208.html

The sign of the terms in a circuit refers to the direction of the current flow and the polarity of the voltage sources. It can be either positive or negative, depending on the direction of the current flow and the polarity of the voltage sources.

To determine the sign of a term in a circuit, you need to follow the direction of the current flow and the polarity of the voltage sources. If the current is flowing in the same direction as the voltage source's positive terminal, the term will have a positive sign. If the current is flowing in the opposite direction, the term will have a negative sign.

Yes, the sign of a term in a circuit can change if the direction of the current flow or the polarity of the voltage sources changes. For example, if the current flow changes direction, a term with a positive sign may become negative and vice versa.

The sign of a term is important in a circuit because it determines the direction of the current flow and the polarity of the voltage sources. This information is crucial in analyzing and understanding the behavior of the circuit, as well as predicting the values of voltage and current at different points in the circuit.

The sign of a term can affect the overall circuit by changing the direction and magnitude of the current flow and the voltage values at different points in the circuit. It also determines the behavior and operation of different components in the circuit, such as resistors, capacitors, and inductors.

Share:

- Replies
- 0

- Views
- 57

- Replies
- 1

- Views
- 240

- Replies
- 10

- Views
- 846

- Replies
- 22

- Views
- 985

- Replies
- 9

- Views
- 531

- Replies
- 18

- Views
- 526

- Replies
- 17

- Views
- 727

- Replies
- 5

- Views
- 618

- Replies
- 3

- Views
- 496

- Replies
- 1

- Views
- 422