An AM radio tuning circuit has a coil with an inductance of 4.00 mH and a capacitor set at 7.50 × 10−⁶ μF.What frequency will it detect? A) 1520 kHz B) 919 kHz C) 550 kHz D) 750 kHz

Question

Quizplus · Accepted Answer

The resonant frequency of an LC circuit can be calculated using the formula: 
f = 1/(2π√(LC))

Substituting the given values: 
f = 1/(2π√(4.00 mH × 7.50 × 10^-16 F)) 
f = 919 kHz

Therefore, the circuit will detect a frequency of 919 kHz. Option B) is correct.

An AM Radio Tuning Circuit Has a Coil with an Inductance