The Two Ends of a 3

question 21

Multiple Choice

The two ends of a 3.0-W resistor are connected to a 9.0-V battery.What is the current through the resistor?

• A)27 A
• B)6.3 A
• C)3.0 A
• D)0.33 A

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Definitions:

PET Scans

Imaging tests that allow doctors to check for diseases in the body by injecting a radioactive substance to show activity and function of tissues and organs.

Sympathetic System

Part of the autonomic nervous system that activates what is often termed the fight or flight response, preparing the body for rapid action in response to a perceived threat.

Parasympathetic System

controls homeostasis and the body at rest and is responsible for the body's "rest and digest" response.

CNS

The central nervous system, comprising the brain and spinal cord, responsible for integrating sensory information and responding accordingly.