Coulomb’s Law Apparatus - ES-9070
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Accurately measure charge, force, and distance between two conductive spheres.
What's included
Coulomb's Law Apparatus (Qty: 1)
Third Conductive Sphere (Qty: 1)
Charging Probe (Qty: 1)
Allen Wrench and Calibration Masses (Qty: 1)
Calibration Post (Qty: 1)
Manual (Qty: 1)
Product Summary
With the ES-9070 Coulomb’s Law Apparatus, students can accurately measure charge, force and distance between two conductive spheres. Its symmetrical design minimizes stray and mirror charges and built-in magnetic damping ensures quick, accurate measurements.
Features
Built-in Balance Scale: A degree scale on the torsion balance provides accurate measurements of the torsion wire’s twist angle.
Magnetic Damping: Allows measurements to be made quickly, minimizing the traditional difficulties with leakage currents.
Milligram Masses: Included so determining the torsion constant and verifying its linearity can be part of the experiment.
Insulated Track: The calibrated track is designed plastic to minimize mirror charges which can significantly affect results.
Built-in Track Scale: A millimeter scale on the linear track provides accurate measurements of the distance between the spheres.
Vary Charge Accurately: A third conductive sphere, identical to the experimental spheres, is included for reducing the charge on one or both spheres by fixed ratios. This method is quick and accurate.
Symmetric Construction: All conductive parts are symmetrical, so errors due to mirror charges are practically nonexistent.
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What's Included
Coulomb's Law Apparatus (Qty: 1)
Third Conductive Sphere (Qty: 1)
Charging Probe (Qty: 1)
Allen Wrench and Calibration Masses (Qty: 1)
Calibration Post (Qty: 1)
Manual (Qty: 1)
Warrning
NO DATA SERVED BY API
Product Specifications
Torsion Balance Assembly: 38 mm dia. conductive sphere on 12 cm rod with counterbalance vane
Torsion Balance Wire: equals 10-6 Newtons/degree
Torsion Balance Degree Plate: 1° increments
Torsion Balance Magnetic Damping: dampens oscillations for quick measurements
Linear Track Sphere: 38 mm dia. conductive sphere
Linear Track Range of Movement: 350 mm in 1 mm increments
Linear Track Material: phenolic (to minimize mirror charges)
Charging Probe: 17 cm long plus 1.5 m cable; banana plug connector; 200 μΩ internal resistance
Calibration Masses: 50 mg (1), 20 mg (2)
Conductive Sphere on Insulating Thread: for reducing charge by fixed ratios
Spare Torsion Wire: 3 m
Shipping Size: 28 x 38 x 61 cm (11 x 15 x 24 in.)
Shipping Weight: 9.5 kg, 21 lbs
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https://cdn2.webdamdb.com/md_MvxpZdZZ86X7.png?1579793065;https://cdn2.webdamdb.com/1280_MvxpZdZZ86X7.png?1579793065;
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