Two spherical conductors of unequal diameter on insulated glass pillars — Teylers Museum

Two spherical conductors of unequal diameter on insulated glass pillars

circa 1825 - 1849

Brass is conductive while glass is not conductive. An electric charge applied to one of these spheres will, in principle, stay there. (At least if the air is dry, because damp air is conductive too). An electric charge will spread evenly over the surface of a spherical conductor. This set is to demonstrate that the strength of the electric field around the sphere does not depend on the size of the sphere, but only on the strength of the electric charge. By pushing the charged spheres against each other (hence the square cut at one side), the charge can be divided equally over both spheres. After separation they will have an identical electric field.

Administration name

Fysisch Kabinet

Title

Two spherical conductors of unequal diameter on insulated glass pillars

Translated title

Two spherical conductors of unequal diameter on insulated glass pillars

Dating

[{'start': '1825', 'end_precision': 'circa', 'end': '1849', 'start_precision': 'circa'}]

Measurements

[{'notes': u'', 'part': 'geheel', 'type': u'', 'value': '330', 'unit': u''}, {'notes': u'', 'part': 'voet', 'type': u'', 'value': '122', 'unit': u''}, {'notes': u'', 'part': 'bol', 'type': u'', 'value': '79', 'unit': u''}, {'notes': u'', 'part': 'geheel', 'type': u'', 'value': '342', 'unit': u''}, {'notes': u'', 'part': 'voet', 'type': u'', 'value': '124', 'unit': u''}, {'notes': u'', 'part': 'bol', 'type': u'', 'value': '91', 'unit': u''}]

Reproduction reference

[{'reference': '..\\images\\Fysisch\\Gekoppelde afbeeldingen\\FK 0478.jpg'}]

Order image