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  • nesna commented on lgs15951's instructable HOMOPOLAR Motor That Can Be Made At Home11 months ago
    HOMOPOLAR Motor That Can Be Made At Home

    Hi, i plan on doing this for a physics assessment. My dependent variable would be the angular speed measured by a laser tachometer but i for my independent variable i wanted to do voltage but we need at least 7 different sets, so 7 different voltages. I'm not sure how to do this, should i find batteries with 7 different voltages? use a variable power pack? or find another independent variable? thanks.

    Hi, i plan on doing this for a physics assessment. My dependent variable would be the angular speed measured by a laser tachometer but for my independent variable i wanted to do voltage but we need at least 7 different sets, so 7 different voltages. I'm not sure how to do this, should i find batteries with 7 different voltages? use a variable power pack? or find another independent variable? thanks.

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