Variable Angle Glass Prism, 30° x 30° x 120° Prong_3 used both in galvanic-cell construction

used both in galvanic-cell construction and as the photoemitter in classic photoelectric-effect demonstrations

Studies oblique collisions between steel balls on a flat surface

supplying the small components needed to extend electromagnetic induction work beyond the standard core and coil pair

5-liter electric kettle on 220V AC

Insulated 2mm-plug lead in the small-scale lead family

Variable Angle Glass Prism, 30° x 30° x 120° Prong_3 used both in galvanic-cell constructionStandard 30 apex glass prism with 30 x 30 x 120 geometry, the apex angle approaching minimum deviation territory where small apex changes produce visible deviation shifts.