Given a power supply that measures 50 volts no load and 40 volts full load, what is the percent regulation?

To determine the percent regulation of a power supply, you can use the formula for percent regulation, which is calculated as follows:

Percent Regulation = (\left(\frac{\text{No Load Voltage} - \text{Full Load Voltage}}{\text{No Load Voltage}}\right) \times 100%)

In this case, the no load voltage is 50 volts and the full load voltage is 40 volts.

1. First, subtract the full load voltage from the no load voltage: 50 volts - 40 volts = 10 volts.

2. Then, take this result and divide it by the no load voltage: (\frac{10\text{ volts}}{50\text{ volts}} = 0.2).

3. Finally, multiply by 100 to convert this to a percentage: (0.2 \times 100% = 20%).

This means the percent regulation of the power supply is 20%. Therefore, 20% is the correct and confirmed calculation based on the provided voltage measurements.

The percent regulation reflects how well the power supply can maintain voltage under varying load conditions; in this example, the voltage drops from 50 volts at no