Answer:
The correct answer is option 3) 12.5.
Explanation:
To calculate the percent speed regulation of a D.C. motor, we can use the following formula:
Percent Speed Regulation = [(No Load Speed - Full Load Speed) / Full Load Speed] * 100
Given that the motor turns at 1600 RPM at full load and 1800 RPM at no load, we can substitute these values into the formula:
Percent Speed Regulation = [(1800 - 1600) / 1600] * 100
Simplifying the equation:
Percent Speed Regulation = (200 / 1600) * 100
Percent Speed Regulation = 0.125 * 100
Percent Speed Regulation = 12.5
Therefore, the percent speed regulation of the D.C. motor is 12.5.
The correct answer is option 3) 12.5.
