ElectCalculator

Hi, I'm an electrical engineer and I often becomes necessary to quickly calculate the electrical values ​​such as current or power to determine the size of wire.
       For ease of calculation, I decided to write a program that helps to make these calculations very quickly. My program does not need to type digits from the keyboard and it is enough to move the slider to the desired value.
     I hope this program is useful to you.
The calculator:
Voltage 1-10KB
Current 1-10KA
Power 1-10MW
The program has to change the order of evaluation, it needs to push the maximum value slider.