An AM radio tuning circuit has a coil with an inductance of 1.65 mH and a capacitor set at 7.01 × 10−⁶ μF.What frequency will it detect? A) 1236 kHz B) 1480 kHz C) 2470 kHz D) 236 kHz E) 740 kHz

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Quizplus · Accepted Answer

The resonant frequency of an LC circuit is given by the formula $ f = \frac{1}{2\pi\sqrt{LC}} $. Converting the given values to standard units, L = 1.65 mH = 1.65 × 10^-3 H and C = 7.01 × 10^-12 F. Plugging these into the formula gives approximately 1480 kHz.

An AM Radio Tuning Circuit Has a Coil with an Inductance