Description
letting students measure rotational distance against linear advance to derive the mechanical advantage of the spiral
5-inch needle-pointed stand grips a 3/4-inch-wide bar magnet upright for hands-free study of attraction
temperature-stable cylindrical magnets are needed
or batteries required
resistor networks
4-Cell D-Size Battery Holder Capacity_10mL letting students measure rotational distanceFour cell D size holder in unbreakable plastic with curved retention sides, sized to deliver 6V at the high current capacity of D cells for sustained electromagnet and motor demonstrations.
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