Effect of Electric Field on Charge-electricity Form 5 (Yanti)
2
EFFECT OF ELECTRIC FIELD ON CHARGE Diagram Explanation A ping pong ball coated with a metallic paint. The ball still remain stationary. When the ping pong ball is displaced to the right to touch the positive plate, it receives positive charge. The ping pong ball is attracted to the negative plate. When the ping pong ball touches the negative plate, its charge is neutralised and immediately receives negative cahrge. The ping pong ball is attracted by the positive plate. The process are repeated caused the ping pong ball oscillates.
description
rrr
Transcript of Effect of Electric Field on Charge-electricity Form 5 (Yanti)
EFFECT OF ELECTRIC FIELD ON CHARGEDiagramExplanation
A ping pong ball coated with a metallic paint. The ball still remain stationary.
When the ping pong ball is displaced to the right to touch the positive plate, it receives positive charge. The ping pong ball is attracted to the negative plate.
When the ping pong ball touches the negative plate, its charge is neutralised and immediately receives negative cahrge. The ping pong ball is attracted by the positive plate.
The process are repeated caused the ping pong ball oscillates.
EFFECT OF ELECTRIC FIELD ON CANDLE FLAME
DiagramExplanation
The heat of the candle flame removes electrons from the air molecules around it, and therefore ionised the molecule.
If the candle is placed in between 2 plates connected to a Extra High Tension (E.H.T.) power supply, the positive ions will be attracted to the negative plate while the negative ions will be attracted to the positive plate. The positive ions which are heavier is pulled towards the negative plate with a large force occupy a larger proportion of the flame.
