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Inductance of the coil? 
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#1
Dec2009, 02:07 AM

P: 69

1. The problem statement, all variables and given/known data
A radio has a tuning circuit consisting of a variable capacitor and antenna coil. IF the circuit has a maximum current when C=300pF and f=40kHz, what's the inductance of the coil?? 2. Relevant equations f= 1/(2pi root (LC)) 3. The attempt at a solution L=[1/(2pi(40000))]^2 times 1/(300E12) But, I didn't get the answer :52.8x 10^3 was the answer;; 


#2
Dec2009, 02:16 AM

HW Helper
Thanks
P: 10,374

The right answer is 52.8x10^(3) H.
ehild 


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