Category Archives: Electronics

Learning the Art of Electronics: 1W.4 Thevenin Models | Learning Electronics In The Lab With Jay Jay

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Silly Job Title: Capacitor Captain. I am the Capacitor Captain!

In this video we continue working our way through Learning the Art of Electronics and continue working through 1W Worked Examples: DC circuits with 1W.4 Thevenin models.

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Passive sign convention

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Today I learned about the passive sign convention in electric circuits. It is also known as “associated references”. When current is flowing into the positive terminal of a circuit element then the element is absorbing power. When current is flowing into the negative terminal of a circuit element then the element is providing power. P = VI and when P is positive the element is receiving power and when P is negative the element is providing power. In a complete circuit the sum of power is zero, the sources and loads are evenly balanced.