alleryA radio is tuned to a station by matching the resonant frequency of:
AIts tuning circuit
BIts power supply
CIts loudspeaker
DIts metal casing
Answer & Solution
Correct answer: A. Its tuning circuit
1. A receiver must pick one signal out of many.
2. It does that by making one frequency resonate.
3. The capacitor of its tuning circuit is adjusted.
4. So the answer is its tuning circuit.
_Source: syllabus Physics, Ch 7 'Alternating Current'_
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