In my physics class (highschool) we constructed a simply DC motor, or was our objective. However only 2 groups completed motors that actually worked. I am one of the many frustrutated students among my class that doens't understand why my motor didn't work. Our objective was to make a motor using concepts of electromagnetism using ferromagnetics (not actual magnets). This process using the right hand rules provided us means to create a motor with a core and armature. The Core i used was constructed out of an Iron can i folded few times then bent it into a blocky U shape. I then wrapped 24 gauge wires around it three times. The core im assuming is great, i can pick up a nail with just one AA battery hooked up with it. However my armature is another story.. I used a coat hanger as the axle (its approximately 4.5 inches long). I made two armatures, one with antique iron nails, and another with nails from the hardware store (its not galvenized so its good im guessing). However the one with antique nails is that after i wrap wires around the nails (connected perpendicularly with the axle going thru both the nails) is that when i test its balance, it always balances perfectly one way. i'm guessing the nails always balance a fixed way because one nail is heavier than the other? Anyhow when i connect the entire circuitry, the armature only twitches, then it doesn't do anything. And same thing happens with the nails i got from hardware shop. The nails i used in the armature is the same as in core.
Pint-size luxury and funky style
Shopping for a new car this weekend? See how the BMW X2 stacks up against the Volvo XC40 in our side-by-side comparison.