Which of the folllowing is used as conventional regulator of fan? • Th
Right Answer is: B
• The conventional regulator of a fan is a kind of Resistor.
• Resistors are used to control the fan speed. The regulator has spools of wire with different amounts of resistances.
• When you set the knob at a particular position, you include a certain resistance in series with the fan. A series connection implies the resistance is in line with the fan. This reduces the voltage drop across the fan and its speed to your desired level.
• The greater the resistance, higher is the voltage drop across it and that lowers the speed of the fan.