A balloon, initially neutral, is r\ubbed with fur until it...

A balloon, initially neutral, is rubbed with fur until it acquires a net charge of $-0.60 \mathrm{nC}$. (a) Assuming that only electrons are transferred, were electrons removed from the balloon or added to it? (b) How many electrons were transferred?

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Key Concepts

Triboelectric Effect

The triboelectric effect is the phenomenon where materials become electrically charged after being rubbed together. This process involves the transfer of electrons from one material to another, resulting in a net positive charge on one object and a net negative charge on the other. It explains how friction can produce static electricity, which is essential for understanding many everyday electrostatic phenomena.

Net Electric Charge

Electric charge is a fundamental property of matter that describes the imbalance between positive and negative charges in an object. It can be positive, negative, or neutral and is determined by the sum of the individual charges present. Understanding net electric charge is crucial for analyzing how objects interact, especially when charge is transferred between them.

Elementary Charge

The elementary charge is the smallest measurable unit of electric charge, carried by a single proton or electron. Since electrons have a well-known charge value, problems involving the number of electrons transferred use this constant to determine the quantized nature of charge exchange. The elementary charge underpins the concept that all charges are integer multiples of this fundamental unit.

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