Three Identical Lightbulbs Are Connected in Parallel to a Constant

question 37

Multiple Choice

Three identical lightbulbs are connected in parallel to a constant voltage power supply. Initially, switch S₁ is closed and the other two switches open. When the other two switches, S₂ and S₃, are closed, the brightness of the first light bulb B₁

• A) will be less.
• B) will be unchanged.
• C) will be more.
• D) will depend on how long the switches are on.
• E) cannot be predicted without knowledge of V and resistance.

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Definitions:

Interference

A phenomenon in which the learning of new information hampers the retrieval of older information.

Prefrontal Cortex

The front part of the frontal lobes of the brain, involved in complex cognitive behaviors such as decision making, personality expression, and moderating social behavior.

Temporal Lobe

A region of the brain involved in processing auditory information and encoding memory.

Working Memory

A cognitive system responsible for temporarily holding information available for processing, important for reasoning and the guidance of decision-making and behavior.