Electrostatics: Conduction Induction and Grounding

What is the primary function of an electroscope?

• To measure electrical resistance

• To demonstrate electric charge

• To generate electrical energy

• To store electric charge

What happens to the aluminum foils of the electroscope when a charged balloon is brought near?

• They repel each other

• No visible change occurs

• They become electrically neutral

• They attract each other

What is the result of touching the charged balloon to the electroscope?

• The electroscope loses its charge

• The balloon becomes neutral

• Protons transfer to the balloon

• Electrons transfer to the electroscope

What role does grounding play when the electroscope is touched by a person?

• It has no effect on the electroscope

• It increases the positive charge of the electroscope

• It helps in transferring excess electrons from the electroscope

• It charges the electroscope further

What does the term 'ground' imply in electrical terms?

• An unchangeable body

• A source of infinite protons

• A complete insulator

• A source of infinite electrons

What is the key difference between charging by conduction and induction?

• Induction requires contact; conduction does not

• Neither requires direct contact

• Conduction requires contact; induction does not

• Both require direct contact

During induction, what happens to the electroscope when the charged balloon is near but not touching?

• The foils repel each other

• The foils attract each other

• The foils discharge completely

• The foils become neutral

What is the effect of grounding the electroscope during the induction process?

• It increases the negative charge

• It removes all electrons from the electroscope

• It has no effect on the charge

• It balances the charge in the electroscope

What happens to the charges in the metal sphere when it is grounded in the induction process?

• No change in charges occurs

• Electrons are removed from the sphere

• Electrons are added to the sphere

• Protons are added to the sphere

After grounding in the induction process, what is the net charge of the electroscope?

• Net positive

• Neutral

• Highly charged

• Net negative