Shop Our Categories www.sci-supply.com Search site Physics & Physical Science Advanced Physics Electricity Battery Holders Bulb Holders Bulbs / Lamps Connectors Demonstrations & Activities Meters Motors Power Supplies Switches Tools Wiring Sliding Rheostats Electrostatics Wimshurst Machines Heat Light Magnetism Measurement Mechanics Sound Laboratory Alternative Energy Science Kits Educator Bulk Packs CLEARANCE Submit Search Helpful Information Site Help / FAQ Shipping Info Returns Product Instructions Purchase Orders Tax Exempt Customers Contact Us Savings & Promotions Coupons Website Security Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 Home > Physics & Physical Science > Electrostatics > Screen Electroscope: Charge Distribution Electroscope Our Price: $19.95 Availability:: Usually Ships in 24 Hours Product Code: SS18155 Qty: DESCRIPTION PRODUCT INSTRUCTIONS This screen electroscope is used to demonstrate the effect of surface curvature on the strength of an electric field. A characteristic of conducting objects at electrostatic equilibrium is that electric fields are strongest at locations along the surface where the object is most curved. The curvature of a surface can range from absolute flatness on one extreme to being curved to a blunt point on the other extreme. This electroscope has a flexible conductive fabric the is joined by 3 insulated metal pillars. The pillars can be manipulated to change the surface curvature of the fabric. When charged, the red strings embedded in the fabric will deflect. The degree of deflection will depend on how the fabric is situated (straight line vs curved). The use of a portable Van De Graaff generator (Fun Fly Stick) is the recommended charging method. A regular Van De Graaff generator will also work with proper setup. Related Items Nylon Replacement Roller for Van De Graaff Generator Parallel Plate Capacitor Set w/ Accessory Pack Replacement Belt Set (2) for Vanguard II Wimshurst Machine Set of 2 Van De Graaff Generator Replacement Rollers with Top Collector Mounting Bracket Our Price: $19.95 Add Our Price: $39.95 Add Our Price: $4.99 Add Our Price: $42.95 Add Deluxe Wimshurst Machine, Vanguard III Model Replacement Aluminum Sectors for Wimshurst Machine, Package of 20 Electrostatic Popcorn Popper / Volta's Hailstorm (Accessory For LC2910-HC) Gas Ionization Tube for Wimshurst with Connecting Wires Sale Price: $94.95 Add Our Price: $7.95 Add Our Price: $18.95 Add Our Price: $13.79 Add Average Rating: 4 of 5 Total Reviews: 1 Write a review » 0 of 0 people found the following review helpful: Nice Demonstrator December 10, 2015 Reviewer: J. Pell from Paramus, NJ United States I use this in conjunction with a fun fly stick to demonstrate electrostatic potential and discharge characteristics. Was this review helpful to you?