Question

A radio has clear reception when the elements of the LC oscillator in its tuning circuit are set to values of 0.75 pH and 100 nF. This radio is tuned to which station? O a) WIBW 580 kHz b) Sports radio WHB 810 kHz OC) KMAN 1350 kHz O d) KCTE Hot Talk 1510 kHz

Answer 1

6 sol Given L = 0.75 ull = 0.75 x 10 C = 100 nF ico X10 x 10 9 107F U Know Resonant frequency we of a Tuned Cerceant f Sic f = 2x3.14 50.75x106x107 108 2x 3.14 Jeso S lo 1000 tro 2*3.14 X 27.39 2x 3.14 x 27.39 5, 814 x 10 H2 581.6x102H2 581-4 KH Z ~ 580 R 142. Radio is tuned to the WiBw 580KHZ station Hence option i.e WIBW 580 KHZ is correct answer.