A 1.15-?H inductor is connected in series with a variable capacitor in the tuning section of a short wave radio set. What capacitance tunes the circuit to the signal from a transmitter broadcasting at 6.84 MHz?_________pF
f1/(2π√LC) , f6.84*10^6Hz , L1.15μH , C? √LC 1/2πf 1/2*3.14*6.84*10^6 2.3268*10^-8 LC 5.414*10^-16 C 5.414*10^-16/1.15*10^-6 470.78[pF]