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Robotics

Robotics · Quick practice · answer shown after each question

Motors and power

Question 1 of 10

Question 1 of 10

A motor driver is needed because microcontroller pins

Question 2 of 10

Question 2 of 10

A stepper motor rotates in

Question 3 of 10

Question 3 of 10

The power output of a motor giving 0.5 N m torque at 10 rad/s is

Question 4 of 10

Question 4 of 10

Batteries connected in series

Question 5 of 10

Question 5 of 10

A stepper motor moves in

Question 6 of 10

Question 6 of 10

A DC motor's direction can be reversed by

Question 7 of 10

Question 7 of 10

A PWM signal with a 25% duty cycle on a 12 V supply gives an average voltage of

Question 8 of 10

Question 8 of 10

The speed of a DC motor is commonly controlled by

Question 9 of 10

Question 9 of 10

PWM (pulse-width modulation) is often used to

Question 10 of 10

Question 10 of 10

An H-bridge circuit is used to

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.