US$ 29.00
Five-volt moving-coil DC voltmeter at plus-or-minus 2
Bulb connected to a bourdon guage
Spanning a full year of optics coursework
mechanical advantage
Mechanical Stop Watch, 1/5 Second Graduations_50mL Five-volt moving-coil DC voltmeter atFor timing experiments in physics classrooms, this mechanical stopwatch reads to one fifth of a second on an analog dial, running battery free for repeatable classroom and stockroom use.
US$ 29.00
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