You find a very inexpensive toy in your house that operates using a single switch. When you hold down the switch, the toy lights up and starts emitting a very loud sound. When you let go of the switch, the sounds and lights turn off. The switch is most likely a

You connect a DC motor to a circuit for your bionic hand prototype, to open and close the gripper. However, the motor does not seem to spin. Which of the following should you do? Select all that apply

Rank the following metals from most conductive to least conductive. This may require some internet sleuthing!

Which of the following steps can be used to decrease the resistance in a wire (select all that apply)

Look at the following circuit diagram. Which of the following resistor values for R will ensure the current is closest to 2 microamps without exceeding?

Which of the following scenarios should be avoided? (select all that apply)