Electromagnetic Theory Input Characteristic Impedances Online Exam Quiz

Electromagnetic Theory Input Characteristic Impedances GK Quiz. Question and Answers related to Electromagnetic Theory Input Characteristic Impedances. MCQ (Multiple Choice Questions with answers about Electromagnetic Theory Input Characteristic Impedances

The reflection coefficient lies in the range of

Options

A : 0 < ? < 1

B : -1 < ? < 1

C : 1 < ? < ?

D : 0 < ? < ?

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When the ratio of load voltage to input voltage is 5, the ratio of the characteristic impedance to the input impedance is

Options

A : 1/5

B : 5

C : 10

D : 25

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The group delay of the wave with phase constant of 62.5 units and frequency of 4.5 radian/sec is

Options

A : 13.88

B : 31.88

C : 88.13

D : 88.31

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The power of the transmitter with a radiation resistance of 12 ohm and an antenna current of 3.5A is

Options

A : 147

B : 741

C : 174

D : 471

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The maximum impedance of a transmission line 50 ohm and the standing wave ratio of 2.5 is

Options

A : 20

B : 125

C : 200

D : 75

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The characteristic impedance of a quarter wave transformer with load and input impedances given by 30 and 75 respectively is

Options

A : 47.43

B : 37.34

C : 73.23

D : 67.45

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The input impedance of a quarter wave line 50 ohm and load impedance of 20 ohm is

Options

A : 50

B : 20

C : 1000

D : 125

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The characteristic impedance of a transmission line is normally chosen to be

Options

A : 50

B : 75

C : 50 or 75

D : 100

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The minimum impedance of a transmission line 75 ohm with a standing wave ratio of 4 is

Options

A : 75

B : 300

C : 18.75

D : 150

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For a matched line, the input impedance will be equal to

Options

A : Load impedance

B : Characteristic impedance

C : Output impedance

D : Zero

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