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

question 22

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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