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__Circuits Frequency Response Objective Questions:__

[1] Consider the parallel RLC circuit having R= 1, L= 1H, C=1F . What type of response will the circuit produce?__Circuits Frequency Response Objective Questions:__

A. Under damped

B. Over damped

C. Critically damped

D. None of these

[2] How much inductance is needed to resonate at 5 kHz with a capacitance of 12nF?

B. 11.844 H

C. 3.333 H

D. 84.33 mH

[3] The difference between the half power frequencies is called the

A. Quality factor

B. Resonant frequency

C. Bandwidth

D. Cutoff frequency

B. Resonant frequency

C. Bandwidth

D. Cutoff frequency

[4] A parallel RLC circuit has C=0.25F & L=2H. The value of R which will create unity damping factor is

A. 1

B. 2

C. 0.5

D. 4

A. 1

B. 2

C. 0.5

D. 4

[5] A zero of the transfer function

10(s+1)

H(s) = ------------

(s+2)(s+3)

is at

A. 10

B. -1

C. -2

D. -3

10(s+1)

H(s) = ------------

(s+2)(s+3)

is at

A. 10

B. -1

C. -2

D. -3

[6] On the Bode magnitude plot, the slope of the pole 1/(5 + jω)

A. 20 dB/decade

B. 40 dB/decade

C. - 40 dB/decade

D. -20 dB/decade

^{2 }isA. 20 dB/decade

B. 40 dB/decade

C. - 40 dB/decade

D. -20 dB/decade

[7] On the bode phase plot, the slope of [1 + j10ω - ω

A. 45°/decade

B. 90°/decade

C. 135°/decade

D. 180°/decade

^{2}/25]^{2}isA. 45°/decade

B. 90°/decade

C. 135°/decade

D. 180°/decade

[8] In an electric circuit, the dual of resistance is

A. Conductance

B. Capacitance

C. Open circuit

D. Inductance

A. Conductance

B. Capacitance

C. Open circuit

D. Inductance

[9] In a series RLC circuit, which of these quality factors has the steepest curve at resonance?

A. Q = 20

B. Q = 12

C. Q = 8

D. Q = 4

A. Q = 20

B. Q = 12

C. Q = 8

D. Q = 4

[10] In a parallel RLC circuit, the bandwidth B is directly proportional to R

A. True

B. False

A. True

B. False

Hi. Shouldn't the answer to question 9 be (A) since for series resonance, a steep curve (i.e. narrow bandwidth) implies high quality factor?

ReplyDelete**Alexander, C. and Sadiku M. Fundamentals of Electric Circuits, 5th ed.page 664, question 14.6.

yes 9 A is right answer

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