Question

-1.125 mA o -0.25 mA o 1125 mA Question 4 2 pts Which type of motor we discussed in class has two wires, whose rotational direction can be reversed by switching the polarity of the wires, rotates at high speeds, but with very low torque capability o DC Continuous O Servo Motor Stepper Motor

Answer 1

Option (a): DC continuous Motor. To control the direction of rotation of a DC motor. i.e., clockwise or anti clockwise, the polarity of the applied voltage is varied. Implies strictly speaking, the motors can actually create a force is either direction. We make this important discussion because some application such as hap tic feedback make use of braking to control the DC motor without it actually turning in the opposite direction. if a motor is already in motor the applied voltage can be inverted and the motor with declare quickly, eventually shopping. If the voltage continuous to be applied, the motor will start again rotating according to the voltage polarity.