Canadian Advanced pool, section 1-05

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Subelement 1

Advanced Theory

Section 1-05

quality factor

1-05-01

What is the Q of a parallel R-L-C circuit, if it is resonant at 14.128 MHz, L is 2.7 microhenrys and R is 18 kilohms?

A.
7.51
B.
0.013
C.
71.5
Correct Answer
D.
75.1

1-05-01

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1-05-02

What is the Q of a parallel R-L-C circuit, if it is resonant at 14.128 MHz, L is 4.7 microhenrys and R is 18 kilohms?

A.
13.3
Correct Answer
B.
43.1
C.
0.023
D.
4.31

1-05-02

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1-05-03

What is the Q of a parallel R-L-C circuit, if it is resonant at 4.468 MHz, L is 47 microhenrys and R is 180 ohms?

Correct Answer
A.
0.136
B.
7.35
C.
0.00735
D.
13.3

1-05-03

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1-05-04

What is the Q of a parallel R-L-C circuit, if it is resonant at 14.225 MHz, L is 3.5 microhenrys and R is 10 kilohms?

A.
7.35
Correct Answer
B.
31.9
C.
0.0319
D.
71.5

1-05-04

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1-05-05

What is the Q of a parallel R-L-C circuit, if it is resonant at 7.125 MHz, L is 8.2 microhenrys and R is 1 kilohm?

Correct Answer
A.
2.73
B.
36.8
C.
0.368
D.
0.273

1-05-05

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1-05-06

What is the Q of a parallel R-L-C circuit, if it is resonant at 7.125 MHz, L is 10.1 microhenrys and R is 100 ohms?

A.
22.1
B.
0.00452
Correct Answer
C.
0.221
D.
4.52

1-05-06

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1-05-07

What is the Q of a parallel R-L-C circuit, if it is resonant at 7.125 MHz, L is 12.6 microhenrys and R is 22 kilohms?

Correct Answer
A.
39
B.
22.1
C.
0.0256
D.
25.6

1-05-07

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1-05-08

What is the Q of a parallel R-L-C circuit, if it is resonant at 3.625 MHz, L is 3 microhenrys and R is 2.2 kilohms?

A.
25.6
B.
31.1
Correct Answer
C.
32.2
D.
0.031

1-05-08

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1-05-09

What is the Q of a parallel R-L-C circuit, if it is resonant at 3.625 MHz, L is 42 microhenrys and R is 220 ohms?

A.
2.3
B.
4.35
Correct Answer
C.
0.23
D.
0.00435

1-05-09

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1-05-10

What is the Q of a parallel R-L-C circuit, if it is resonant at 3.625 MHz, L is 43 microhenrys and R is 1.8 kilohms?

A.
0.543
B.
54.3
C.
23
Correct Answer
D.
1.84

1-05-10

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1-05-11

Why is a resistor often included in a parallel resonant circuit?

A.
To increase the Q and decrease the skin effect
B.
To decrease the Q and increase the resonant frequency
C.
To increase the Q and decrease bandwidth
Correct Answer
D.
To decrease the Q and increase the bandwidth

1-05-11

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