The Length of a Certain Wire Is Doubled and at the Same

question 19

Multiple Choice

The length of a certain wire is doubled and at the same time its radius is also doubled. What is the change in the resistance of this wire?

• A) It stays the same.
• B) It is doubled.
• C) It is quadrupled.
• D) It is reduced by a factor of 2.
• E) It is reduced by a factor of 4.

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Definitions:

Preferred Shares

A class of ownership in a corporation that provides a higher claim on assets and earnings than common shares; dividends must be paid on these shares before any can be distributed to common shareholders.

Dividend Income

Earnings distributed to shareholders from the profits achieved by a company, often calculated per share and paid out in cash or additional shares.

Fair Value

An estimated market value of an asset, liability, or financial instrument, determined based on the current market conditions and not its historical cost.