A23-Tuned Circuits 2

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What is the dynamic resistance of a circuit with a 20 uH inductor, a 50pF capacitor and a resistance of 2 Ohms?
1. 50 k Ohms
2. 100 k Ohms
3. 200 k Ohms
4. 2000 k Ohms
A damping resistance across a parallel tuned circuit will:
1. Shift the central resonant frequency up
2. It will lower the Q
3. It will raise the Q
4. Shift the central resonant frequency down
A crystal is the equivalent to which of these drawings?
A crystal exhibits
1. resistive resonance
2. parallel resonance
3. serial resonance
4. series and parallel resonances
The voltage and current is resonant circuits are
1. Lower than the DC supply to the circuit
2. Higher than the DC supply to the circuit
3. The same as the DC supply to the circuit
4. The opposite polarity as the DC voltage

A23-Tuned Circuits 2

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