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

question 39

Multiple Choice

The length of a certain wire is doubled and at the same time its radius is reduced by a factor of 2. What is the new resistance of this wire?

• A) It is 4 times as large.
• B) It is \(1 / 2\) as large.
• C) It it 8 times as large.
• D) It is 6 times as large.
• E) It is 2 times as large.

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Definitions:

Malpighian Tubules

Excretory tubes uniquely found in the digestive system of insects and arachnids, serving to remove waste products from the blood.

Major Nitrogenous Waste

The primary form of nitrogen excreted by organisms, which varies among species (urea in mammals, uric acid in birds and reptiles, and ammonia in aquatic organisms).

Annelids

A phylum of segmented worms that includes earthworms and leeches, characterized by their segmented bodies and presence in diverse habitats.

Nitrogenous Waste

Waste products containing nitrogen, such as ammonia, urea, and uric acid, produced by the metabolism of proteins and nucleic acids.