Electronics students, as well as teachers and other engineers, will find Electronics Assistant to be of great use. It is a small yet powerful program that was designed to perform calculations for almost all electronics measurement units. It offers many calculators that you can use to easily find the results of different electronics formulas.
The program comes with a highly customizable user-interface. By accessing the program menu, you are enabled to open a calculator for each measurement unit: resistance, capacitance, inductance, power, frequency, as well as calculators for Ohm’s Law, Voltage regulator, etc. Each calculator is opened in a new window that also contains detailed information regarding electronics units and how some electronic circuits work.
Version 4.3 of Electronics Assistant comes with minor bug fixes and additional calculators. The program is now able to calculate the power dissipation for an LED resistor, as well as the total resistance of multiple LEDs in series.
Electronics Assistant is an application that I strongly recommend, given the fact that it provides calculators for a wide range of electronics measurement units.