A series resonant band-pass filter consists of a 2 mH coil, a 0.005 �F capacitor

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Question
A series resonant band-pass filter consists of a 2 mH coil, a 0.005 µF capacitor, and a 120 Ω resistor. The winding resistance of the coil is 12 Ω. The output voltage is taken off the resistor. Input voltage is 12 V_rms. What is the output voltage magnitude at the center frequency (f₀)?
Options
A. 10.9 V
B. 1.09 V
C. 1.1 V
D. 12 V

Correct Answer

10.9 V

More questions

1. A complex number represents a phasor quantity.
Options
A. True
B. False

Discuss

Correct Answer: True

2. To increase the current in a series RL circuit, the frequency
Options
A. should be increased
B. should be decreased
C. should be constant
D. cannot be determined without values

Discuss

Correct Answer: should be decreased

3. You cannot convert a voltage source to an equivalent current source, or vice versa.
Options
A. True
B. False

Discuss

Correct Answer: False

4. Power rating is related to resistance value.
Options
A. True
B. False

Discuss

Correct Answer: False

5. In an RL high-pass filter, the output is taken across the inductor and the output leads the input.
Options
A. True
B. False

Discuss

Correct Answer: True

6. A 15 V source is connected across a 12 Ω resistor. How much energy is used in three minutes?
Options
A. 938 Wh
B. 0.938 Wh
C. 56.25 Wh
D. 5.6 Wh

Discuss

Correct Answer: 0.938 Wh

7. A given power supply is capable of providing 6 A for 3.5 h. Its ampere-hour rating is
Options
A. 0.58 Ah
B. 2.1 Ah
C. 21 Ah
D. 58 Ah

Discuss

Correct Answer: 21 Ah

8. A loop current is an actual current in a branch.
Options
A. True
B. False

Discuss

Correct Answer: False

9. A 12 V source has an internal resistance of 90 Ω. If a load resistance of 20 Ω is connected to the voltage source, the load power, P_L, is
Options
A. 2.38 mW
B. 2.38 W
C. 238 mW
D. 23.8 W

Discuss

Correct Answer: 238 mW

10. Five 100 Ω resistors are connected in parallel. If one resistor is removed, the total resistance is
Options
A. 25 Ω
B. 500 Ω
C. 100 Ω
D. 20 Ω

Discuss

Correct Answer: 25 Ω

Explanation:

1/R = 1/R1 + 1/R2 + 1/R3 + 1/R4

1/R = 1/100 + 1/100 + 100 + 1/100

1/R = 4/100

1/R = 1/25

Therefore R = 25 ohm.

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A series resonant band-pass filter consists of a 2 mH coil, a 0.005 µF capacitor, and a 120 Ω resistor. The winding resistance of the coil is 12 Ω. The output voltage is taken off the resistor. Input voltage is 12 Vrms. What is the output voltage magnitude at the center frequency (f0)?

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A series resonant band-pass filter consists of a 2 mH coil, a 0.005 µF capacitor, and a 120 Ω resistor. The winding resistance of the coil is 12 Ω. The output voltage is taken off the resistor. Input voltage is 12 V_rms. What is the output voltage magnitude at the center frequency (f₀)?