How may the output voltage of a dynamotor be regulated?

How may the output voltage of a dynamotor be regulated?

• A. Only by changing the speed of the motor
• B. A series resistance in the output line could be used to reduce the available output voltage
• C. Either A or B
• D. None of the above

Answer: (C)

The output voltage of a dynamotor can be regulated in a couple of different ways, which is why the correct choice is that either method can be effective. Changing the speed of the motor directly affects the output voltage. A dynamotor operates by converting mechanical energy into electrical energy. If the speed of the motor is increased, the output voltage tends to rise, while decreasing the speed reduces the voltage. This means controlling the motor's speed can be a straightforward and effective method for regulating the output voltage. In addition to this, introducing a series resistance in the output line can effectively lower the available output voltage. This method does not change the voltage derived from the dynamotor itself but functions as a voltage drop across the resistor, effectively reducing what is available at the output terminals. Both methods provide viable means to control the dynamotor's output voltage, justifying the conclusion that either changing the motor speed or using series resistance can be employed for regulation purposes.

The output voltage of a dynamotor can be regulated in a couple of different ways, which is why the correct choice is that either method can be effective.

Changing the speed of the motor directly affects the output voltage. A dynamotor operates by converting mechanical energy into electrical energy. If the speed of the motor is increased, the output voltage tends to rise, while decreasing the speed reduces the voltage. This means controlling the motor's speed can be a straightforward and effective method for regulating the output voltage.

In addition to this, introducing a series resistance in the output line can effectively lower the available output voltage. This method does not change the voltage derived from the dynamotor itself but functions as a voltage drop across the resistor, effectively reducing what is available at the output terminals.

Both methods provide viable means to control the dynamotor's output voltage, justifying the conclusion that either changing the motor speed or using series resistance can be employed for regulation purposes.