A Charged Comb Attracts Bits of Neutral Dust in the Air

question 28

Multiple Choice

A charged comb attracts bits of neutral dust in the air. This happens because

• A) the dust becomes polarized.
• B) the dust grounds the comb.
• C) the dust becomes charged by induction.
• D) the dust is a good conductor.

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Definitions:

Backing Up

The process of creating a copy of data from a database or software system to prevent loss of information and facilitate recovery in case of data corruption or hardware failure.

Compacting

Compacting refers to the process of reducing the size of a database or file system by removing unused space, helping to improve efficiency and performance.

Database Passwords

Specific types of passwords used to protect and restrict access to a database, ensuring that only authorized users can access or modify the data.

Case Sensitive

Describes a condition where the differentiation between uppercase and lowercase letters is considered significant in operations like searches and password validation.