644-ELECTRONICS LAB..-5 In the half wave rectifier circuit, if the maximum output signal is 12.3 volts, what is the DC_Average for this signal? Select one: Oa. 3.92 volts Ob. 6.15 volts O c. 7.83 volts Od. 12.3 volts

#11 Step Up Transformer A transformer primary coil has 2,300 windings, while the sec- ondary coil has 12,400 windings. If the primary coil is operated at a RMS voltage of 10.0 V, what is the RMS voltage in the secondary coil? A. 1.86 V В. 24.1 V С. 53.9 V D. 120 V

AC Circuits 8. For the circuit shown, 10 Ω а. What is the resonance frequency in Hz? (10 V) cos wt 10 mH 10 μF b. What is the circuit's peak current at resonance? с. If the inductance is doubled, what is the new resonance frequency in Hz? d. If instead of (c), the resistance is tripled, what is the new resonance frequency? e. The peak current for this circuit at any frequency w is given by: I = R² + (X1 – X.)² Explain mathematically why this peak current is maxed out only when driven at the resonance frequency HH

9. A radio can tune over the frequency range of a portion of MW broadcast band (800 kHz to 1200 kHz). If its L-C circuit has an effective inductance of 200 µH, what must be the range of its variable capacitor?