ELI5: Explain Like I'm 5

Fleming's left-hand rule for motors

Okay kiddo, do you know what a motor is? It's a machine that helps things move, like a toy car, a fan or even a washing machine.

Now imagine that you are holding a motor in your left hand. Wiggle your thumb, your first finger and your second finger out in different directions.

Here's where Fleming's left-hand rule comes in. If you point your thumb in the direction of the motion, point your first finger in the direction of the magnetic field, and point your second finger in the direction of the electrical current, then you can figure out which way the motor will move.

So, in simpler words, if you want your motor to move, you have to create an electrical current and you have to put it into a magnetic field. The interaction between the electrical current and the magnetic field will make the motor move. Remember to use your left hand and follow the thumb, first finger and second finger directions to figure out which direction the motor will move in.

Cool, huh? Now you know how to use Fleming's left-hand rule to make things move with motors!
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