- When capacitor is charged by Wimshurst generator, dielectric plate experiences a force, pulling plate into capacitor.
Location
- Capacitor, dielectric plate, and balance arm: L01, section B1.
- Wimshurst generator: L01, Section A2.
plate
Flame in Capacitor
-
When high voltage is applied across capacitor plates, flame is deflected towards positive plate.
Location
- Capacitor: L01, section B1
- High Voltage Power Supply: L01, section A1
- Candle: L02, Section C3
Force on Capacitor Plates
- When Capacitor is charged, plates experience an attractive force.
- Force can be measured by placing one plate on a tripple beam balance, and suspending the other plate directly above the first using a ring stand.
- Capacitor plates are connected to high voltage power supply.
- Compare measured force to theoretical.
Location
- Balance: L35, section D3
- High Voltage Power Supply: L01, section A1
- Capacitor plates with electrodes: L35 section E2
- Lab Jack: L35, section D1
Electrophorus
- Charge the plastic electrophorus plate negative by rubbing it with fur. Placing the metallic plate on top of the plastic plate and connecting it to a grounding wire will give the metallic plate a positive charge by induction.
Existence of these charges can be verified using the electroscope. The plastic
plate should retain its negative charge long enough for demonstrator to charge metal plate several times.
Location
- Electrophorus demo: L01, section A2, top shelf.
- Electroscope: L01, section A2.