The Nature of Electricity: Charges in Action

The video tutorial explains the effects of charges using an electroscope. It describes how metal leaves inside a glass flask react to a negatively charged rubber rod and a positively charged glass rod. The metal leaves repel each other due to the transfer of charges via conduction, demonstrating the principle that like charges repel.

What is the initial state of the metal leaves in the electroscope setup?

• Positively charged and spread apart

• Negatively charged and spread apart

• Uncharged and spread apart

• Uncharged and hanging straight down

What happens to the metal leaves when a negatively charged rubber rod touches the electroscope?

• They attract each other

• They remain unchanged

• They repel each other

• They become positively charged

How is the negative charge transferred from the rubber rod to the metal leaves?

• Through radiation

• Through conduction

• Through convection

• Through induction

What effect does a positively charged glass rod have on the metal leaves of the electroscope?

• They become negatively charged

• They repel each other

• They attract each other

• They remain unchanged

Why do the metal leaves repel each other when they acquire the same charge?

• Because like charges repel

• Because opposite charges repel

• Because opposite charges attract

• Because like charges attract