Radio Receivers Are Usually Tuned by Adjusting the Capacitor of an LC

question 30

Multiple Choice

Radio receivers are usually tuned by adjusting the capacitor of an LC circuit. If C = C₁ for a frequency of 600 kHz, then for a frequency of 1200 kHz one must adjust C to:

• A) C₁/2
• B) C₁/4
• C) 2C₁
• D) 4C₁

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Definitions:

Physical Activity

Any bodily movement produced by skeletal muscles that requires energy expenditure, contributing to health and fitness.

Heart Disease

A range of conditions affecting the heart, including coronary artery disease, heart rhythm problems (arrhythmias), and heart defects, among others.

Lifespan

The total number of years that an organism is expected to live under natural circumstances.

Coronary Artery Disease

A condition characterized by the narrowing of the coronary arteries due to the buildup of plaque, leading to reduced blood flow to the heart.