Name:_______________________

Quiz 7

04/20/2006

Ch. 23-24

Useful number(s): speed of light c=3x10⁸ m/s

1) Find the power dissipated in each element in the following circuit.

2) A radio tuner made from a resonant LC circuit uses a 100mH inductor? What size capacitor is needed to make the circuit resonant at 91.5 MHz?

3) A good antenna can be made from a wire that is one-quarter of the wavelength of the EM wave that it is supposed to receive. How long would a quarter-wavelength antenna be for your favorite radio station (be sure to tell me which station is your favorite)? If you don’t have a favorite you can use mine 91.5MHz.