From charge to motion

Connect current, magnetic torque and the mechanical gear ratio.

1. 01

   Complete the electrical path

   Close a circuit. Compare one resistor with two in series and parallel.

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2. 02

   Turn current into torque

   Start a motor and compare current at rest with current while spinning.

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3. 03

   Choose what the turn can do

   Use a gear pair to trade output speed for ideal torque.

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Take these steps at your own pace. Your place is not saved as account progress or scored.