Prism Glow - Electronics - EEES - Chapter 2 - Alternating Currents and Voltages

2-5 Self Inductance

The circuit element that requires that a voltage across it be directly proportional to the rate of change of current through it is an inductor. Quantatively, this formula looks like this
is the symbol for inductance. When is in volts, is in amperes, and is in seconds, then is in henrys.

Whiteboard with Inductance and Power Formulas

Click to Enlarge

This is an image of the whiteboard notes I took on this subchapter and how I put it together in my mind. It repeats the formula shown above defining voltage in terms of inductance, and current change over change in time. It goes on to show how the energy in joules is calculated by summing up the power over time.

Whiteboard showing how to sum up Power x Time to get Energy

Click to Enlarge

This second whiteboard image expands upon the concept of summing up the power times the time to get the energy. Again, this is just a simple Calculus concept that I wanted to expand into a detailed illustration because it so clearly describes the relationship between power and energy.

Electronics > EEES > Chapter 2 - Alternating Currents and Voltages > 2-5 Self Inductance
2-5 Self Inductance The circuit element that requires that a voltage across it be directly proportional to the rate of change of current through it is an inductor. Quantatively, this formula looks like this is the symbol for inductance. When is in volts, is in amperes, and is in seconds, then is in henrys. Click to Enlarge This is an image of the whiteboard notes I took on this subchapter and how I put it together in my mind. It repeats the formula shown above defining voltage in terms of inductance, and current change over change in time. It goes on to show how the energy in joules is calculated by summing up the power over time. Click to Enlarge This second whiteboard image expands upon the concept of summing up the power times the time to get the energy. Again, this is just a simple Calculus concept that I wanted to expand into a detailed illustration because it so clearly describes the relationship between power and energy.