High Frequency

Solved Example:

9910-01

For a transmission line if $\dfrac{L}{C} = \dfrac{R}{G}$, then which of the following is incorrect? (UPPSC AE Electrical Dec 2020)

Correct Answer: D

Solved Example:

9910-02

A single-phase transmission line of impedance j0.8 ohm supplies a resistive load of 500 A at 300 V. The sending end power factor is: (ISRO (VSSC) Technical Assistant Electrical 2017)

Correct Answer: D

Solved Example:

9910-03

A transmission line having 50 $\Omega$ impedance is terminated in a load of (40 + j30) $\Omega$. The VSWR is: (TN TRB EC 2012)

Correct Answer: D

Solved Example:

9910-04

A 100 V peak signal at 1 GHz is applied to a transmission line of characteristic impedance 100 $\Omega$, terminated with an antenna of 75 $\Omega$. The peak values of reflected and incident currents are: (UPRVUNL AE EC 2016)

Correct Answer: A

Solved Example:

9910-05

If a transmission line is terminated with a resistance equal to its characteristic impedance: (URSC (ISRO) Tech Asst (Electronics): Mar 2019)

Correct Answer: B

Solved Example:

9910-06

A transmission line of surge impedance 300 Ω is connected to a load of 300 $\Omega$. The reflection coefficient of transmission line at the load end will be: (UPPCL AE EE Paper 1 Jan 2019 Shift I)

Correct Answer: A