Regarding the static electrictity experiment Faraday ice pai

Regarding the static electrictity experiment (Faraday ice pail) :

1. When comparing the charge on the white disk vs. the blue disk, what was the relation between the magnitude and polarity of the disks? How does this demonstrate conservation of charge?

2. When one of the charged disks touched the ice pail why was there a permanent voltage reading?

Solution

1) The two disks will have an equal amount of charge but are of with opposite signs.

One disk will have equal amount of positive charge and the other will have an equal amount of the negative charge.

Thus the sum of the total charge after charging the disks is zero as before they were un charged.

Thus the law of conservation of charge was emonstrated.

According to this law, the charge of an isolated system remains conserved.

2. Because posiitvely charged disk has a high potential ad negatively charged disk has low potential.

When positively charged disk touches the ice pail there will be trasfer of electrons from pail to disk so there will be pemanant voltage readind . Similarlywhen a negatively charged disk touches the ice pail there will be transfer of electrons from disk to the pail . Hence here also there will a permanent voltage readind.

As long as the elctron trasfer is there there will be a permanent voltage reading.