A Resistor of Unknown Resistance and a 15-Ω Resistor Are

question 63

Multiple Choice

A resistor of unknown resistance and a 15-Ω resistor are connected across a 20-V emf in such a way that a 2.0 A current is observed in the emf. What is the value of the unknown resistance?

• A) 75 Ω
• B) 12 Ω
• C) 7.5 Ω
• D) 30 Ω
• E) 5.0 Ω

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Definitions:

Classically Conditioned

A training technique where two stimuli are continually linked together; a reaction initially caused by the second stimulus is ultimately triggered by the first stimulus by itself.

Emotional Reactions

Immediate responses to stimuli or events, varying in intensity, that involve psychological and physiological changes and influencing behavior.

Conscious Recollection

The intentional and aware memory retrieval of specific experiences or information from one's past.

Procedural Memories

Memories for the performance of actions or skills, often known as "muscle memory," which are recalled without conscious awareness.