A Light Bulb with a Tungsten Filament Is Attached to a Source

question 49

Multiple Choice

A light bulb with a tungsten filament is attached to a source of variable voltage. As the voltage is increased on the bulb,

• A) the bulb's resistance decreases.
• B) the bulb's resistance increases.
• C) the power dissipated remains constant.
• D) the current in the bulb decreases.

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Definitions:

Table

A piece of furniture with a flat top and one or more legs, providing a level surface on which objects can be placed, or in the context of data, a structured arrangement of information organized in rows and columns.

Texture Gradients

Visual cues to depth and distance that involve changes in texture as an object extends into the distance.

Linear Perspective

A technique in art and photography that creates the illusion of depth and distance on a flat surface, using converging lines and a vanishing point.

Visual Cortex

The part of the cerebral cortex that processes visual information, located in the occipital lobe of the brain.